1 /*- 2 * Implementation of SCSI Sequential Access Peripheral driver for CAM. 3 * 4 * Copyright (c) 1999, 2000 Matthew Jacob 5 * Copyright (c) 2013, 2014, 2015 Spectra Logic Corporation 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification, immediately at the beginning of the file. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 33 #include <sys/param.h> 34 #include <sys/queue.h> 35 #ifdef _KERNEL 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #endif 39 #include <sys/types.h> 40 #include <sys/time.h> 41 #include <sys/bio.h> 42 #include <sys/limits.h> 43 #include <sys/malloc.h> 44 #include <sys/mtio.h> 45 #ifdef _KERNEL 46 #include <sys/conf.h> 47 #include <sys/sbuf.h> 48 #include <sys/sysctl.h> 49 #include <sys/taskqueue.h> 50 #endif 51 #include <sys/fcntl.h> 52 #include <sys/devicestat.h> 53 54 #ifndef _KERNEL 55 #include <stdio.h> 56 #include <string.h> 57 #endif 58 59 #include <cam/cam.h> 60 #include <cam/cam_ccb.h> 61 #include <cam/cam_periph.h> 62 #include <cam/cam_xpt_periph.h> 63 #include <cam/cam_debug.h> 64 65 #include <cam/scsi/scsi_all.h> 66 #include <cam/scsi/scsi_message.h> 67 #include <cam/scsi/scsi_sa.h> 68 69 #ifdef _KERNEL 70 71 #include <opt_sa.h> 72 73 #ifndef SA_IO_TIMEOUT 74 #define SA_IO_TIMEOUT 32 75 #endif 76 #ifndef SA_SPACE_TIMEOUT 77 #define SA_SPACE_TIMEOUT 1 * 60 78 #endif 79 #ifndef SA_REWIND_TIMEOUT 80 #define SA_REWIND_TIMEOUT 2 * 60 81 #endif 82 #ifndef SA_ERASE_TIMEOUT 83 #define SA_ERASE_TIMEOUT 4 * 60 84 #endif 85 #ifndef SA_REP_DENSITY_TIMEOUT 86 #define SA_REP_DENSITY_TIMEOUT 90 87 #endif 88 89 #define SCSIOP_TIMEOUT (60 * 1000) /* not an option */ 90 91 #define IO_TIMEOUT (SA_IO_TIMEOUT * 60 * 1000) 92 #define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000) 93 #define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000) 94 #define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000) 95 #define REP_DENSITY_TIMEOUT (SA_REP_DENSITY_TIMEOUT * 60 * 1000) 96 97 /* 98 * Additional options that can be set for config: SA_1FM_AT_EOT 99 */ 100 101 #ifndef UNUSED_PARAMETER 102 #define UNUSED_PARAMETER(x) x = x 103 #endif 104 105 #define QFRLS(ccb) \ 106 if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \ 107 cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE) 108 109 /* 110 * Driver states 111 */ 112 113 static MALLOC_DEFINE(M_SCSISA, "SCSI sa", "SCSI sequential access buffers"); 114 115 typedef enum { 116 SA_STATE_NORMAL, SA_STATE_ABNORMAL 117 } sa_state; 118 119 #define ccb_pflags ppriv_field0 120 #define ccb_bp ppriv_ptr1 121 122 /* bits in ccb_pflags */ 123 #define SA_POSITION_UPDATED 0x1 124 125 126 typedef enum { 127 SA_FLAG_OPEN = 0x0001, 128 SA_FLAG_FIXED = 0x0002, 129 SA_FLAG_TAPE_LOCKED = 0x0004, 130 SA_FLAG_TAPE_MOUNTED = 0x0008, 131 SA_FLAG_TAPE_WP = 0x0010, 132 SA_FLAG_TAPE_WRITTEN = 0x0020, 133 SA_FLAG_EOM_PENDING = 0x0040, 134 SA_FLAG_EIO_PENDING = 0x0080, 135 SA_FLAG_EOF_PENDING = 0x0100, 136 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING| 137 SA_FLAG_EOF_PENDING), 138 SA_FLAG_INVALID = 0x0200, 139 SA_FLAG_COMP_ENABLED = 0x0400, 140 SA_FLAG_COMP_SUPP = 0x0800, 141 SA_FLAG_COMP_UNSUPP = 0x1000, 142 SA_FLAG_TAPE_FROZEN = 0x2000, 143 SA_FLAG_PROTECT_SUPP = 0x4000, 144 145 SA_FLAG_COMPRESSION = (SA_FLAG_COMP_SUPP|SA_FLAG_COMP_ENABLED| 146 SA_FLAG_COMP_UNSUPP), 147 SA_FLAG_SCTX_INIT = 0x8000 148 } sa_flags; 149 150 typedef enum { 151 SA_MODE_REWIND = 0x00, 152 SA_MODE_NOREWIND = 0x01, 153 SA_MODE_OFFLINE = 0x02 154 } sa_mode; 155 156 typedef enum { 157 SA_PARAM_NONE = 0x000, 158 SA_PARAM_BLOCKSIZE = 0x001, 159 SA_PARAM_DENSITY = 0x002, 160 SA_PARAM_COMPRESSION = 0x004, 161 SA_PARAM_BUFF_MODE = 0x008, 162 SA_PARAM_NUMBLOCKS = 0x010, 163 SA_PARAM_WP = 0x020, 164 SA_PARAM_SPEED = 0x040, 165 SA_PARAM_DENSITY_EXT = 0x080, 166 SA_PARAM_LBP = 0x100, 167 SA_PARAM_ALL = 0x1ff 168 } sa_params; 169 170 typedef enum { 171 SA_QUIRK_NONE = 0x000, 172 SA_QUIRK_NOCOMP = 0x001, /* Can't deal with compression at all*/ 173 SA_QUIRK_FIXED = 0x002, /* Force fixed mode */ 174 SA_QUIRK_VARIABLE = 0x004, /* Force variable mode */ 175 SA_QUIRK_2FM = 0x008, /* Needs Two File Marks at EOD */ 176 SA_QUIRK_1FM = 0x010, /* No more than 1 File Mark at EOD */ 177 SA_QUIRK_NODREAD = 0x020, /* Don't try and dummy read density */ 178 SA_QUIRK_NO_MODESEL = 0x040, /* Don't do mode select at all */ 179 SA_QUIRK_NO_CPAGE = 0x080, /* Don't use DEVICE COMPRESSION page */ 180 SA_QUIRK_NO_LONG_POS = 0x100 /* No long position information */ 181 } sa_quirks; 182 183 #define SA_QUIRK_BIT_STRING \ 184 "\020" \ 185 "\001NOCOMP" \ 186 "\002FIXED" \ 187 "\003VARIABLE" \ 188 "\0042FM" \ 189 "\0051FM" \ 190 "\006NODREAD" \ 191 "\007NO_MODESEL" \ 192 "\010NO_CPAGE" \ 193 "\011NO_LONG_POS" 194 195 #define SAMODE(z) (dev2unit(z) & 0x3) 196 #define SA_IS_CTRL(z) (dev2unit(z) & (1 << 4)) 197 198 #define SA_NOT_CTLDEV 0 199 #define SA_CTLDEV 1 200 201 #define SA_ATYPE_R 0 202 #define SA_ATYPE_NR 1 203 #define SA_ATYPE_ER 2 204 #define SA_NUM_ATYPES 3 205 206 #define SAMINOR(ctl, access) \ 207 ((ctl << 4) | (access & 0x3)) 208 209 struct sa_devs { 210 struct cdev *ctl_dev; 211 struct cdev *r_dev; 212 struct cdev *nr_dev; 213 struct cdev *er_dev; 214 }; 215 216 #define SASBADDBASE(sb, indent, data, xfmt, name, type, xsize, desc) \ 217 sbuf_printf(sb, "%*s<%s type=\"%s\" size=\"%zd\" " \ 218 "fmt=\"%s\" desc=\"%s\">" #xfmt "</%s>\n", indent, "", \ 219 #name, #type, xsize, #xfmt, desc ? desc : "", data, #name); 220 221 #define SASBADDINT(sb, indent, data, fmt, name) \ 222 SASBADDBASE(sb, indent, data, fmt, name, int, sizeof(data), \ 223 NULL) 224 225 #define SASBADDINTDESC(sb, indent, data, fmt, name, desc) \ 226 SASBADDBASE(sb, indent, data, fmt, name, int, sizeof(data), \ 227 desc) 228 229 #define SASBADDUINT(sb, indent, data, fmt, name) \ 230 SASBADDBASE(sb, indent, data, fmt, name, uint, sizeof(data), \ 231 NULL) 232 233 #define SASBADDUINTDESC(sb, indent, data, fmt, name, desc) \ 234 SASBADDBASE(sb, indent, data, fmt, name, uint, sizeof(data), \ 235 desc) 236 237 #define SASBADDFIXEDSTR(sb, indent, data, fmt, name) \ 238 SASBADDBASE(sb, indent, data, fmt, name, str, sizeof(data), \ 239 NULL) 240 241 #define SASBADDFIXEDSTRDESC(sb, indent, data, fmt, name, desc) \ 242 SASBADDBASE(sb, indent, data, fmt, name, str, sizeof(data), \ 243 desc) 244 245 #define SASBADDVARSTR(sb, indent, data, fmt, name, maxlen) \ 246 SASBADDBASE(sb, indent, data, fmt, name, str, maxlen, NULL) 247 248 #define SASBADDVARSTRDESC(sb, indent, data, fmt, name, maxlen, desc) \ 249 SASBADDBASE(sb, indent, data, fmt, name, str, maxlen, desc) 250 251 #define SASBADDNODE(sb, indent, name) { \ 252 sbuf_printf(sb, "%*s<%s type=\"%s\">\n", indent, "", #name, \ 253 "node"); \ 254 indent += 2; \ 255 } 256 257 #define SASBADDNODENUM(sb, indent, name, num) { \ 258 sbuf_printf(sb, "%*s<%s type=\"%s\" num=\"%d\">\n", indent, "", \ 259 #name, "node", num); \ 260 indent += 2; \ 261 } 262 263 #define SASBENDNODE(sb, indent, name) { \ 264 indent -= 2; \ 265 sbuf_printf(sb, "%*s</%s>\n", indent, "", #name); \ 266 } 267 268 #define SA_DENSITY_TYPES 4 269 270 struct sa_prot_state { 271 int initialized; 272 uint32_t prot_method; 273 uint32_t pi_length; 274 uint32_t lbp_w; 275 uint32_t lbp_r; 276 uint32_t rbdp; 277 }; 278 279 struct sa_prot_info { 280 struct sa_prot_state cur_prot_state; 281 struct sa_prot_state pending_prot_state; 282 }; 283 284 /* 285 * A table mapping protection parameters to their types and values. 286 */ 287 struct sa_prot_map { 288 char *name; 289 mt_param_set_type param_type; 290 off_t offset; 291 uint32_t min_val; 292 uint32_t max_val; 293 uint32_t *value; 294 } sa_prot_table[] = { 295 { "prot_method", MT_PARAM_SET_UNSIGNED, 296 __offsetof(struct sa_prot_state, prot_method), 297 /*min_val*/ 0, /*max_val*/ 255, NULL }, 298 { "pi_length", MT_PARAM_SET_UNSIGNED, 299 __offsetof(struct sa_prot_state, pi_length), 300 /*min_val*/ 0, /*max_val*/ SA_CTRL_DP_PI_LENGTH_MASK, NULL }, 301 { "lbp_w", MT_PARAM_SET_UNSIGNED, 302 __offsetof(struct sa_prot_state, lbp_w), 303 /*min_val*/ 0, /*max_val*/ 1, NULL }, 304 { "lbp_r", MT_PARAM_SET_UNSIGNED, 305 __offsetof(struct sa_prot_state, lbp_r), 306 /*min_val*/ 0, /*max_val*/ 1, NULL }, 307 { "rbdp", MT_PARAM_SET_UNSIGNED, 308 __offsetof(struct sa_prot_state, rbdp), 309 /*min_val*/ 0, /*max_val*/ 1, NULL } 310 }; 311 312 #define SA_NUM_PROT_ENTS sizeof(sa_prot_table)/sizeof(sa_prot_table[0]) 313 314 #define SA_PROT_ENABLED(softc) ((softc->flags & SA_FLAG_PROTECT_SUPP) \ 315 && (softc->prot_info.cur_prot_state.initialized != 0) \ 316 && (softc->prot_info.cur_prot_state.prot_method != 0)) 317 318 #define SA_PROT_LEN(softc) softc->prot_info.cur_prot_state.pi_length 319 320 struct sa_softc { 321 sa_state state; 322 sa_flags flags; 323 sa_quirks quirks; 324 u_int si_flags; 325 struct cam_periph *periph; 326 struct bio_queue_head bio_queue; 327 int queue_count; 328 struct devstat *device_stats; 329 struct sa_devs devs; 330 int open_count; 331 int num_devs_to_destroy; 332 int blk_gran; 333 int blk_mask; 334 int blk_shift; 335 u_int32_t max_blk; 336 u_int32_t min_blk; 337 u_int32_t maxio; 338 u_int32_t cpi_maxio; 339 int allow_io_split; 340 u_int32_t comp_algorithm; 341 u_int32_t saved_comp_algorithm; 342 u_int32_t media_blksize; 343 u_int32_t last_media_blksize; 344 u_int32_t media_numblks; 345 u_int8_t media_density; 346 u_int8_t speed; 347 u_int8_t scsi_rev; 348 u_int8_t dsreg; /* mtio mt_dsreg, redux */ 349 int buffer_mode; 350 int filemarks; 351 union ccb saved_ccb; 352 int last_resid_was_io; 353 uint8_t density_type_bits[SA_DENSITY_TYPES]; 354 int density_info_valid[SA_DENSITY_TYPES]; 355 uint8_t density_info[SA_DENSITY_TYPES][SRDS_MAX_LENGTH]; 356 357 struct sa_prot_info prot_info; 358 359 int sili; 360 int eot_warn; 361 362 /* 363 * Current position information. -1 means that the given value is 364 * unknown. fileno and blkno are always calculated. blkno is 365 * relative to the previous file mark. rep_fileno and rep_blkno 366 * are as reported by the drive, if it supports the long form 367 * report for the READ POSITION command. rep_blkno is relative to 368 * the beginning of the partition. 369 * 370 * bop means that the drive is at the beginning of the partition. 371 * eop means that the drive is between early warning and end of 372 * partition, inside the current partition. 373 * bpew means that the position is in a PEWZ (Programmable Early 374 * Warning Zone) 375 */ 376 daddr_t partition; /* Absolute from BOT */ 377 daddr_t fileno; /* Relative to beginning of partition */ 378 daddr_t blkno; /* Relative to last file mark */ 379 daddr_t rep_blkno; /* Relative to beginning of partition */ 380 daddr_t rep_fileno; /* Relative to beginning of partition */ 381 int bop; /* Beginning of Partition */ 382 int eop; /* End of Partition */ 383 int bpew; /* Beyond Programmable Early Warning */ 384 385 /* 386 * Latched Error Info 387 */ 388 struct { 389 struct scsi_sense_data _last_io_sense; 390 u_int64_t _last_io_resid; 391 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN]; 392 struct scsi_sense_data _last_ctl_sense; 393 u_int64_t _last_ctl_resid; 394 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN]; 395 #define last_io_sense errinfo._last_io_sense 396 #define last_io_resid errinfo._last_io_resid 397 #define last_io_cdb errinfo._last_io_cdb 398 #define last_ctl_sense errinfo._last_ctl_sense 399 #define last_ctl_resid errinfo._last_ctl_resid 400 #define last_ctl_cdb errinfo._last_ctl_cdb 401 } errinfo; 402 /* 403 * Misc other flags/state 404 */ 405 u_int32_t 406 : 29, 407 open_rdonly : 1, /* open read-only */ 408 open_pending_mount : 1, /* open pending mount */ 409 ctrl_mode : 1; /* control device open */ 410 411 struct task sysctl_task; 412 struct sysctl_ctx_list sysctl_ctx; 413 struct sysctl_oid *sysctl_tree; 414 }; 415 416 struct sa_quirk_entry { 417 struct scsi_inquiry_pattern inq_pat; /* matching pattern */ 418 sa_quirks quirks; /* specific quirk type */ 419 u_int32_t prefblk; /* preferred blocksize when in fixed mode */ 420 }; 421 422 static struct sa_quirk_entry sa_quirk_table[] = 423 { 424 { 425 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream", 426 "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD | 427 SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768 428 }, 429 { 430 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 431 "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0 432 }, 433 { 434 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 435 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0 436 }, 437 { 438 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 439 "Python*", "*"}, SA_QUIRK_NODREAD, 0 440 }, 441 { 442 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 443 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 444 }, 445 { 446 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 447 "VIPER 2525 25462", "-011"}, 448 SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0 449 }, 450 { 451 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 452 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 453 }, 454 #if 0 455 { 456 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 457 "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0, 458 }, 459 #endif 460 { 461 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 462 "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 463 }, 464 { 465 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 466 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 467 }, 468 { 469 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 470 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 471 }, 472 { 473 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 474 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 475 }, 476 { 477 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 478 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 479 }, 480 { 481 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA", 482 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 483 }, 484 { /* jreynold@primenet.com */ 485 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", 486 "STT8000N*", "*"}, SA_QUIRK_1FM, 0 487 }, 488 { /* mike@sentex.net */ 489 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", 490 "STT20000*", "*"}, SA_QUIRK_1FM, 0 491 }, 492 { 493 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "SEAGATE", 494 "DAT 06241-XXX", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 495 }, 496 { 497 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 498 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 499 }, 500 { 501 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 502 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 503 }, 504 { 505 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 506 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 507 }, 508 { 509 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 510 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 511 }, 512 { 513 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 514 " SLR*", "*"}, SA_QUIRK_1FM, 0 515 }, 516 { 517 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", 518 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 519 }, 520 { 521 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", 522 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 523 } 524 }; 525 526 static d_open_t saopen; 527 static d_close_t saclose; 528 static d_strategy_t sastrategy; 529 static d_ioctl_t saioctl; 530 static periph_init_t sainit; 531 static periph_ctor_t saregister; 532 static periph_oninv_t saoninvalidate; 533 static periph_dtor_t sacleanup; 534 static periph_start_t sastart; 535 static void saasync(void *callback_arg, u_int32_t code, 536 struct cam_path *path, void *arg); 537 static void sadone(struct cam_periph *periph, 538 union ccb *start_ccb); 539 static int saerror(union ccb *ccb, u_int32_t cam_flags, 540 u_int32_t sense_flags); 541 static int samarkswanted(struct cam_periph *); 542 static int sacheckeod(struct cam_periph *periph); 543 static int sagetparams(struct cam_periph *periph, 544 sa_params params_to_get, 545 u_int32_t *blocksize, u_int8_t *density, 546 u_int32_t *numblocks, int *buff_mode, 547 u_int8_t *write_protect, u_int8_t *speed, 548 int *comp_supported, int *comp_enabled, 549 u_int32_t *comp_algorithm, 550 sa_comp_t *comp_page, 551 struct scsi_control_data_prot_subpage 552 *prot_page, int dp_size, 553 int prot_changeable); 554 static int sasetprot(struct cam_periph *periph, 555 struct sa_prot_state *new_prot); 556 static int sasetparams(struct cam_periph *periph, 557 sa_params params_to_set, 558 u_int32_t blocksize, u_int8_t density, 559 u_int32_t comp_algorithm, 560 u_int32_t sense_flags); 561 static int sasetsili(struct cam_periph *periph, 562 struct mtparamset *ps, int num_params); 563 static int saseteotwarn(struct cam_periph *periph, 564 struct mtparamset *ps, int num_params); 565 static void safillprot(struct sa_softc *softc, int *indent, 566 struct sbuf *sb); 567 static void sapopulateprots(struct sa_prot_state *cur_state, 568 struct sa_prot_map *new_table, 569 int table_ents); 570 static struct sa_prot_map *safindprotent(char *name, struct sa_prot_map *table, 571 int table_ents); 572 static int sasetprotents(struct cam_periph *periph, 573 struct mtparamset *ps, int num_params); 574 static struct sa_param_ent *safindparament(struct mtparamset *ps); 575 static int saparamsetlist(struct cam_periph *periph, 576 struct mtsetlist *list, int need_copy); 577 static int saextget(struct cdev *dev, struct cam_periph *periph, 578 struct sbuf *sb, struct mtextget *g); 579 static int saparamget(struct sa_softc *softc, struct sbuf *sb); 580 static void saprevent(struct cam_periph *periph, int action); 581 static int sarewind(struct cam_periph *periph); 582 static int saspace(struct cam_periph *periph, int count, 583 scsi_space_code code); 584 static void sadevgonecb(void *arg); 585 static void sasetupdev(struct sa_softc *softc, struct cdev *dev); 586 static int samount(struct cam_periph *, int, struct cdev *); 587 static int saretension(struct cam_periph *periph); 588 static int sareservereleaseunit(struct cam_periph *periph, 589 int reserve); 590 static int saloadunload(struct cam_periph *periph, int load); 591 static int saerase(struct cam_periph *periph, int longerase); 592 static int sawritefilemarks(struct cam_periph *periph, 593 int nmarks, int setmarks, int immed); 594 static int sagetpos(struct cam_periph *periph); 595 static int sardpos(struct cam_periph *periph, int, u_int32_t *); 596 static int sasetpos(struct cam_periph *periph, int, 597 struct mtlocate *); 598 static void safilldenstypesb(struct sbuf *sb, int *indent, 599 uint8_t *buf, int buf_len, 600 int is_density); 601 static void safilldensitysb(struct sa_softc *softc, int *indent, 602 struct sbuf *sb); 603 604 605 #ifndef SA_DEFAULT_IO_SPLIT 606 #define SA_DEFAULT_IO_SPLIT 0 607 #endif 608 609 static int sa_allow_io_split = SA_DEFAULT_IO_SPLIT; 610 611 /* 612 * Tunable to allow the user to set a global allow_io_split value. Note 613 * that this WILL GO AWAY in FreeBSD 11.0. Silently splitting the I/O up 614 * is bad behavior, because it hides the true tape block size from the 615 * application. 616 */ 617 static SYSCTL_NODE(_kern_cam, OID_AUTO, sa, CTLFLAG_RD, 0, 618 "CAM Sequential Access Tape Driver"); 619 SYSCTL_INT(_kern_cam_sa, OID_AUTO, allow_io_split, CTLFLAG_RDTUN, 620 &sa_allow_io_split, 0, "Default I/O split value"); 621 622 static struct periph_driver sadriver = 623 { 624 sainit, "sa", 625 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0 626 }; 627 628 PERIPHDRIVER_DECLARE(sa, sadriver); 629 630 /* For 2.2-stable support */ 631 #ifndef D_TAPE 632 #define D_TAPE 0 633 #endif 634 635 636 static struct cdevsw sa_cdevsw = { 637 .d_version = D_VERSION, 638 .d_open = saopen, 639 .d_close = saclose, 640 .d_read = physread, 641 .d_write = physwrite, 642 .d_ioctl = saioctl, 643 .d_strategy = sastrategy, 644 .d_name = "sa", 645 .d_flags = D_TAPE | D_TRACKCLOSE, 646 }; 647 648 static int 649 saopen(struct cdev *dev, int flags, int fmt, struct thread *td) 650 { 651 struct cam_periph *periph; 652 struct sa_softc *softc; 653 int error; 654 655 periph = (struct cam_periph *)dev->si_drv1; 656 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 657 return (ENXIO); 658 } 659 660 cam_periph_lock(periph); 661 662 softc = (struct sa_softc *)periph->softc; 663 664 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, 665 ("saopen(%s): softc=0x%x\n", devtoname(dev), softc->flags)); 666 667 if (SA_IS_CTRL(dev)) { 668 softc->ctrl_mode = 1; 669 softc->open_count++; 670 cam_periph_unlock(periph); 671 return (0); 672 } 673 674 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 675 cam_periph_unlock(periph); 676 cam_periph_release(periph); 677 return (error); 678 } 679 680 if (softc->flags & SA_FLAG_OPEN) { 681 error = EBUSY; 682 } else if (softc->flags & SA_FLAG_INVALID) { 683 error = ENXIO; 684 } else { 685 /* 686 * Preserve whether this is a read_only open. 687 */ 688 softc->open_rdonly = (flags & O_RDWR) == O_RDONLY; 689 690 /* 691 * The function samount ensures media is loaded and ready. 692 * It also does a device RESERVE if the tape isn't yet mounted. 693 * 694 * If the mount fails and this was a non-blocking open, 695 * make this a 'open_pending_mount' action. 696 */ 697 error = samount(periph, flags, dev); 698 if (error && (flags & O_NONBLOCK)) { 699 softc->flags |= SA_FLAG_OPEN; 700 softc->open_pending_mount = 1; 701 softc->open_count++; 702 cam_periph_unhold(periph); 703 cam_periph_unlock(periph); 704 return (0); 705 } 706 } 707 708 if (error) { 709 cam_periph_unhold(periph); 710 cam_periph_unlock(periph); 711 cam_periph_release(periph); 712 return (error); 713 } 714 715 saprevent(periph, PR_PREVENT); 716 softc->flags |= SA_FLAG_OPEN; 717 softc->open_count++; 718 719 cam_periph_unhold(periph); 720 cam_periph_unlock(periph); 721 return (error); 722 } 723 724 static int 725 saclose(struct cdev *dev, int flag, int fmt, struct thread *td) 726 { 727 struct cam_periph *periph; 728 struct sa_softc *softc; 729 int mode, error, writing, tmp, i; 730 int closedbits = SA_FLAG_OPEN; 731 732 mode = SAMODE(dev); 733 periph = (struct cam_periph *)dev->si_drv1; 734 if (periph == NULL) 735 return (ENXIO); 736 737 cam_periph_lock(periph); 738 739 softc = (struct sa_softc *)periph->softc; 740 741 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, 742 ("saclose(%s): softc=0x%x\n", devtoname(dev), softc->flags)); 743 744 745 softc->open_rdonly = 0; 746 if (SA_IS_CTRL(dev)) { 747 softc->ctrl_mode = 0; 748 softc->open_count--; 749 cam_periph_unlock(periph); 750 cam_periph_release(periph); 751 return (0); 752 } 753 754 if (softc->open_pending_mount) { 755 softc->flags &= ~SA_FLAG_OPEN; 756 softc->open_pending_mount = 0; 757 softc->open_count--; 758 cam_periph_unlock(periph); 759 cam_periph_release(periph); 760 return (0); 761 } 762 763 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { 764 cam_periph_unlock(periph); 765 return (error); 766 } 767 768 /* 769 * Were we writing the tape? 770 */ 771 writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0; 772 773 /* 774 * See whether or not we need to write filemarks. If this 775 * fails, we probably have to assume we've lost tape 776 * position. 777 */ 778 error = sacheckeod(periph); 779 if (error) { 780 xpt_print(periph->path, 781 "failed to write terminating filemark(s)\n"); 782 softc->flags |= SA_FLAG_TAPE_FROZEN; 783 } 784 785 /* 786 * Whatever we end up doing, allow users to eject tapes from here on. 787 */ 788 saprevent(periph, PR_ALLOW); 789 790 /* 791 * Decide how to end... 792 */ 793 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { 794 closedbits |= SA_FLAG_TAPE_FROZEN; 795 } else switch (mode) { 796 case SA_MODE_OFFLINE: 797 /* 798 * An 'offline' close is an unconditional release of 799 * frozen && mount conditions, irrespective of whether 800 * these operations succeeded. The reason for this is 801 * to allow at least some kind of programmatic way 802 * around our state getting all fouled up. If somebody 803 * issues an 'offline' command, that will be allowed 804 * to clear state. 805 */ 806 (void) sarewind(periph); 807 (void) saloadunload(periph, FALSE); 808 closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN; 809 break; 810 case SA_MODE_REWIND: 811 /* 812 * If the rewind fails, return an error- if anyone cares, 813 * but not overwriting any previous error. 814 * 815 * We don't clear the notion of mounted here, but we do 816 * clear the notion of frozen if we successfully rewound. 817 */ 818 tmp = sarewind(periph); 819 if (tmp) { 820 if (error != 0) 821 error = tmp; 822 } else { 823 closedbits |= SA_FLAG_TAPE_FROZEN; 824 } 825 break; 826 case SA_MODE_NOREWIND: 827 /* 828 * If we're not rewinding/unloading the tape, find out 829 * whether we need to back up over one of two filemarks 830 * we wrote (if we wrote two filemarks) so that appends 831 * from this point on will be sane. 832 */ 833 if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) { 834 tmp = saspace(periph, -1, SS_FILEMARKS); 835 if (tmp) { 836 xpt_print(periph->path, "unable to backspace " 837 "over one of double filemarks at end of " 838 "tape\n"); 839 xpt_print(periph->path, "it is possible that " 840 "this device needs a SA_QUIRK_1FM quirk set" 841 "for it\n"); 842 softc->flags |= SA_FLAG_TAPE_FROZEN; 843 } 844 } 845 break; 846 default: 847 xpt_print(periph->path, "unknown mode 0x%x in saclose\n", mode); 848 /* NOTREACHED */ 849 break; 850 } 851 852 /* 853 * We wish to note here that there are no more filemarks to be written. 854 */ 855 softc->filemarks = 0; 856 softc->flags &= ~SA_FLAG_TAPE_WRITTEN; 857 858 /* 859 * And we are no longer open for business. 860 */ 861 softc->flags &= ~closedbits; 862 softc->open_count--; 863 864 /* 865 * Invalidate any density information that depends on having tape 866 * media in the drive. 867 */ 868 for (i = 0; i < SA_DENSITY_TYPES; i++) { 869 if (softc->density_type_bits[i] & SRDS_MEDIA) 870 softc->density_info_valid[i] = 0; 871 } 872 873 /* 874 * Inform users if tape state if frozen.... 875 */ 876 if (softc->flags & SA_FLAG_TAPE_FROZEN) { 877 xpt_print(periph->path, "tape is now frozen- use an OFFLINE, " 878 "REWIND or MTEOM command to clear this state.\n"); 879 } 880 881 /* release the device if it is no longer mounted */ 882 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) 883 sareservereleaseunit(periph, FALSE); 884 885 cam_periph_unhold(periph); 886 cam_periph_unlock(periph); 887 cam_periph_release(periph); 888 889 return (error); 890 } 891 892 /* 893 * Actually translate the requested transfer into one the physical driver 894 * can understand. The transfer is described by a buf and will include 895 * only one physical transfer. 896 */ 897 static void 898 sastrategy(struct bio *bp) 899 { 900 struct cam_periph *periph; 901 struct sa_softc *softc; 902 903 bp->bio_resid = bp->bio_bcount; 904 if (SA_IS_CTRL(bp->bio_dev)) { 905 biofinish(bp, NULL, EINVAL); 906 return; 907 } 908 periph = (struct cam_periph *)bp->bio_dev->si_drv1; 909 if (periph == NULL) { 910 biofinish(bp, NULL, ENXIO); 911 return; 912 } 913 cam_periph_lock(periph); 914 915 softc = (struct sa_softc *)periph->softc; 916 917 if (softc->flags & SA_FLAG_INVALID) { 918 cam_periph_unlock(periph); 919 biofinish(bp, NULL, ENXIO); 920 return; 921 } 922 923 if (softc->flags & SA_FLAG_TAPE_FROZEN) { 924 cam_periph_unlock(periph); 925 biofinish(bp, NULL, EPERM); 926 return; 927 } 928 929 /* 930 * This should actually never occur as the write(2) 931 * system call traps attempts to write to a read-only 932 * file descriptor. 933 */ 934 if (bp->bio_cmd == BIO_WRITE && softc->open_rdonly) { 935 cam_periph_unlock(periph); 936 biofinish(bp, NULL, EBADF); 937 return; 938 } 939 940 if (softc->open_pending_mount) { 941 int error = samount(periph, 0, bp->bio_dev); 942 if (error) { 943 cam_periph_unlock(periph); 944 biofinish(bp, NULL, ENXIO); 945 return; 946 } 947 saprevent(periph, PR_PREVENT); 948 softc->open_pending_mount = 0; 949 } 950 951 952 /* 953 * If it's a null transfer, return immediately 954 */ 955 if (bp->bio_bcount == 0) { 956 cam_periph_unlock(periph); 957 biodone(bp); 958 return; 959 } 960 961 /* valid request? */ 962 if (softc->flags & SA_FLAG_FIXED) { 963 /* 964 * Fixed block device. The byte count must 965 * be a multiple of our block size. 966 */ 967 if (((softc->blk_mask != ~0) && 968 ((bp->bio_bcount & softc->blk_mask) != 0)) || 969 ((softc->blk_mask == ~0) && 970 ((bp->bio_bcount % softc->min_blk) != 0))) { 971 xpt_print(periph->path, "Invalid request. Fixed block " 972 "device requests must be a multiple of %d bytes\n", 973 softc->min_blk); 974 cam_periph_unlock(periph); 975 biofinish(bp, NULL, EINVAL); 976 return; 977 } 978 } else if ((bp->bio_bcount > softc->max_blk) || 979 (bp->bio_bcount < softc->min_blk) || 980 (bp->bio_bcount & softc->blk_mask) != 0) { 981 982 xpt_print_path(periph->path); 983 printf("Invalid request. Variable block " 984 "device requests must be "); 985 if (softc->blk_mask != 0) { 986 printf("a multiple of %d ", (0x1 << softc->blk_gran)); 987 } 988 printf("between %d and %d bytes\n", softc->min_blk, 989 softc->max_blk); 990 cam_periph_unlock(periph); 991 biofinish(bp, NULL, EINVAL); 992 return; 993 } 994 995 /* 996 * Place it at the end of the queue. 997 */ 998 bioq_insert_tail(&softc->bio_queue, bp); 999 softc->queue_count++; 1000 #if 0 1001 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1002 ("sastrategy: queuing a %ld %s byte %s\n", bp->bio_bcount, 1003 (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable", 1004 (bp->bio_cmd == BIO_READ)? "read" : "write")); 1005 #endif 1006 if (softc->queue_count > 1) { 1007 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1008 ("sastrategy: queue count now %d\n", softc->queue_count)); 1009 } 1010 1011 /* 1012 * Schedule ourselves for performing the work. 1013 */ 1014 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1015 cam_periph_unlock(periph); 1016 1017 return; 1018 } 1019 1020 static int 1021 sasetsili(struct cam_periph *periph, struct mtparamset *ps, int num_params) 1022 { 1023 uint32_t sili_blocksize; 1024 struct sa_softc *softc; 1025 int error; 1026 1027 error = 0; 1028 softc = (struct sa_softc *)periph->softc; 1029 1030 if (ps->value_type != MT_PARAM_SET_SIGNED) { 1031 snprintf(ps->error_str, sizeof(ps->error_str), 1032 "sili is a signed parameter"); 1033 goto bailout; 1034 } 1035 if ((ps->value.value_signed < 0) 1036 || (ps->value.value_signed > 1)) { 1037 snprintf(ps->error_str, sizeof(ps->error_str), 1038 "invalid sili value %jd", (intmax_t)ps->value.value_signed); 1039 goto bailout_error; 1040 } 1041 /* 1042 * We only set the SILI flag in variable block 1043 * mode. You'll get a check condition in fixed 1044 * block mode if things don't line up in any case. 1045 */ 1046 if (softc->flags & SA_FLAG_FIXED) { 1047 snprintf(ps->error_str, sizeof(ps->error_str), 1048 "can't set sili bit in fixed block mode"); 1049 goto bailout_error; 1050 } 1051 if (softc->sili == ps->value.value_signed) 1052 goto bailout; 1053 1054 if (ps->value.value_signed == 1) 1055 sili_blocksize = 4; 1056 else 1057 sili_blocksize = 0; 1058 1059 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, 1060 sili_blocksize, 0, 0, SF_QUIET_IR); 1061 if (error != 0) { 1062 snprintf(ps->error_str, sizeof(ps->error_str), 1063 "sasetparams() returned error %d", error); 1064 goto bailout_error; 1065 } 1066 1067 softc->sili = ps->value.value_signed; 1068 1069 bailout: 1070 ps->status = MT_PARAM_STATUS_OK; 1071 return (error); 1072 1073 bailout_error: 1074 ps->status = MT_PARAM_STATUS_ERROR; 1075 if (error == 0) 1076 error = EINVAL; 1077 1078 return (error); 1079 } 1080 1081 static int 1082 saseteotwarn(struct cam_periph *periph, struct mtparamset *ps, int num_params) 1083 { 1084 struct sa_softc *softc; 1085 int error; 1086 1087 error = 0; 1088 softc = (struct sa_softc *)periph->softc; 1089 1090 if (ps->value_type != MT_PARAM_SET_SIGNED) { 1091 snprintf(ps->error_str, sizeof(ps->error_str), 1092 "eot_warn is a signed parameter"); 1093 ps->status = MT_PARAM_STATUS_ERROR; 1094 goto bailout; 1095 } 1096 if ((ps->value.value_signed < 0) 1097 || (ps->value.value_signed > 1)) { 1098 snprintf(ps->error_str, sizeof(ps->error_str), 1099 "invalid eot_warn value %jd\n", 1100 (intmax_t)ps->value.value_signed); 1101 ps->status = MT_PARAM_STATUS_ERROR; 1102 goto bailout; 1103 } 1104 softc->eot_warn = ps->value.value_signed; 1105 ps->status = MT_PARAM_STATUS_OK; 1106 bailout: 1107 if (ps->status != MT_PARAM_STATUS_OK) 1108 error = EINVAL; 1109 1110 return (error); 1111 } 1112 1113 1114 static void 1115 safillprot(struct sa_softc *softc, int *indent, struct sbuf *sb) 1116 { 1117 int tmpint; 1118 1119 SASBADDNODE(sb, *indent, protection); 1120 if (softc->flags & SA_FLAG_PROTECT_SUPP) 1121 tmpint = 1; 1122 else 1123 tmpint = 0; 1124 SASBADDINTDESC(sb, *indent, tmpint, %d, protection_supported, 1125 "Set to 1 if protection information is supported"); 1126 1127 if ((tmpint != 0) 1128 && (softc->prot_info.cur_prot_state.initialized != 0)) { 1129 struct sa_prot_state *prot; 1130 1131 prot = &softc->prot_info.cur_prot_state; 1132 1133 SASBADDUINTDESC(sb, *indent, prot->prot_method, %u, 1134 prot_method, "Current Protection Method"); 1135 SASBADDUINTDESC(sb, *indent, prot->pi_length, %u, 1136 pi_length, "Length of Protection Information"); 1137 SASBADDUINTDESC(sb, *indent, prot->lbp_w, %u, 1138 lbp_w, "Check Protection on Writes"); 1139 SASBADDUINTDESC(sb, *indent, prot->lbp_r, %u, 1140 lbp_r, "Check and Include Protection on Reads"); 1141 SASBADDUINTDESC(sb, *indent, prot->rbdp, %u, 1142 rbdp, "Transfer Protection Information for RECOVER " 1143 "BUFFERED DATA command"); 1144 } 1145 SASBENDNODE(sb, *indent, protection); 1146 } 1147 1148 static void 1149 sapopulateprots(struct sa_prot_state *cur_state, struct sa_prot_map *new_table, 1150 int table_ents) 1151 { 1152 int i; 1153 1154 bcopy(sa_prot_table, new_table, min(table_ents * sizeof(*new_table), 1155 sizeof(sa_prot_table))); 1156 1157 table_ents = min(table_ents, SA_NUM_PROT_ENTS); 1158 1159 for (i = 0; i < table_ents; i++) 1160 new_table[i].value = (uint32_t *)((uint8_t *)cur_state + 1161 new_table[i].offset); 1162 1163 return; 1164 } 1165 1166 static struct sa_prot_map * 1167 safindprotent(char *name, struct sa_prot_map *table, int table_ents) 1168 { 1169 char *prot_name = "protection."; 1170 int i, prot_len; 1171 1172 prot_len = strlen(prot_name); 1173 1174 /* 1175 * This shouldn't happen, but we check just in case. 1176 */ 1177 if (strncmp(name, prot_name, prot_len) != 0) 1178 goto bailout; 1179 1180 for (i = 0; i < table_ents; i++) { 1181 if (strcmp(&name[prot_len], table[i].name) != 0) 1182 continue; 1183 return (&table[i]); 1184 } 1185 bailout: 1186 return (NULL); 1187 } 1188 1189 static int 1190 sasetprotents(struct cam_periph *periph, struct mtparamset *ps, int num_params) 1191 { 1192 struct sa_softc *softc; 1193 struct sa_prot_map prot_ents[SA_NUM_PROT_ENTS]; 1194 struct sa_prot_state new_state; 1195 int error; 1196 int i; 1197 1198 softc = (struct sa_softc *)periph->softc; 1199 error = 0; 1200 1201 /* 1202 * Make sure that this tape drive supports protection information. 1203 * Otherwise we can't set anything. 1204 */ 1205 if ((softc->flags & SA_FLAG_PROTECT_SUPP) == 0) { 1206 snprintf(ps[0].error_str, sizeof(ps[0].error_str), 1207 "Protection information is not supported for this device"); 1208 ps[0].status = MT_PARAM_STATUS_ERROR; 1209 goto bailout; 1210 } 1211 1212 /* 1213 * We can't operate with physio(9) splitting enabled, because there 1214 * is no way to insure (especially in variable block mode) that 1215 * what the user writes (with a checksum block at the end) will 1216 * make it into the sa(4) driver intact. 1217 */ 1218 if ((softc->si_flags & SI_NOSPLIT) == 0) { 1219 snprintf(ps[0].error_str, sizeof(ps[0].error_str), 1220 "Protection information cannot be enabled with I/O " 1221 "splitting"); 1222 ps[0].status = MT_PARAM_STATUS_ERROR; 1223 goto bailout; 1224 } 1225 1226 /* 1227 * Take the current cached protection state and use that as the 1228 * basis for our new entries. 1229 */ 1230 bcopy(&softc->prot_info.cur_prot_state, &new_state, sizeof(new_state)); 1231 1232 /* 1233 * Populate the table mapping property names to pointers into the 1234 * state structure. 1235 */ 1236 sapopulateprots(&new_state, prot_ents, SA_NUM_PROT_ENTS); 1237 1238 /* 1239 * For each parameter the user passed in, make sure the name, type 1240 * and value are valid. 1241 */ 1242 for (i = 0; i < num_params; i++) { 1243 struct sa_prot_map *ent; 1244 1245 ent = safindprotent(ps[i].value_name, prot_ents, 1246 SA_NUM_PROT_ENTS); 1247 if (ent == NULL) { 1248 ps[i].status = MT_PARAM_STATUS_ERROR; 1249 snprintf(ps[i].error_str, sizeof(ps[i].error_str), 1250 "Invalid protection entry name %s", 1251 ps[i].value_name); 1252 error = EINVAL; 1253 goto bailout; 1254 } 1255 if (ent->param_type != ps[i].value_type) { 1256 ps[i].status = MT_PARAM_STATUS_ERROR; 1257 snprintf(ps[i].error_str, sizeof(ps[i].error_str), 1258 "Supplied type %d does not match actual type %d", 1259 ps[i].value_type, ent->param_type); 1260 error = EINVAL; 1261 goto bailout; 1262 } 1263 if ((ps[i].value.value_unsigned < ent->min_val) 1264 || (ps[i].value.value_unsigned > ent->max_val)) { 1265 ps[i].status = MT_PARAM_STATUS_ERROR; 1266 snprintf(ps[i].error_str, sizeof(ps[i].error_str), 1267 "Value %ju is outside valid range %u - %u", 1268 (uintmax_t)ps[i].value.value_unsigned, ent->min_val, 1269 ent->max_val); 1270 error = EINVAL; 1271 goto bailout; 1272 } 1273 *(ent->value) = ps[i].value.value_unsigned; 1274 } 1275 1276 /* 1277 * Actually send the protection settings to the drive. 1278 */ 1279 error = sasetprot(periph, &new_state); 1280 if (error != 0) { 1281 for (i = 0; i < num_params; i++) { 1282 ps[i].status = MT_PARAM_STATUS_ERROR; 1283 snprintf(ps[i].error_str, sizeof(ps[i].error_str), 1284 "Unable to set parameter, see dmesg(8)"); 1285 } 1286 goto bailout; 1287 } 1288 1289 /* 1290 * Let the user know that his settings were stored successfully. 1291 */ 1292 for (i = 0; i < num_params; i++) 1293 ps[i].status = MT_PARAM_STATUS_OK; 1294 1295 bailout: 1296 return (error); 1297 } 1298 /* 1299 * Entry handlers generally only handle a single entry. Node handlers will 1300 * handle a contiguous range of parameters to set in a single call. 1301 */ 1302 typedef enum { 1303 SA_PARAM_TYPE_ENTRY, 1304 SA_PARAM_TYPE_NODE 1305 } sa_param_type; 1306 1307 struct sa_param_ent { 1308 char *name; 1309 sa_param_type param_type; 1310 int (*set_func)(struct cam_periph *periph, struct mtparamset *ps, 1311 int num_params); 1312 } sa_param_table[] = { 1313 {"sili", SA_PARAM_TYPE_ENTRY, sasetsili }, 1314 {"eot_warn", SA_PARAM_TYPE_ENTRY, saseteotwarn }, 1315 {"protection.", SA_PARAM_TYPE_NODE, sasetprotents } 1316 }; 1317 1318 static struct sa_param_ent * 1319 safindparament(struct mtparamset *ps) 1320 { 1321 unsigned int i; 1322 1323 for (i = 0; i < sizeof(sa_param_table) /sizeof(sa_param_table[0]); i++){ 1324 /* 1325 * For entries, we compare all of the characters. For 1326 * nodes, we only compare the first N characters. The node 1327 * handler will decode the rest. 1328 */ 1329 if (sa_param_table[i].param_type == SA_PARAM_TYPE_ENTRY) { 1330 if (strcmp(ps->value_name, sa_param_table[i].name) != 0) 1331 continue; 1332 } else { 1333 if (strncmp(ps->value_name, sa_param_table[i].name, 1334 strlen(sa_param_table[i].name)) != 0) 1335 continue; 1336 } 1337 return (&sa_param_table[i]); 1338 } 1339 1340 return (NULL); 1341 } 1342 1343 /* 1344 * Go through a list of parameters, coalescing contiguous parameters with 1345 * the same parent node into a single call to a set_func. 1346 */ 1347 static int 1348 saparamsetlist(struct cam_periph *periph, struct mtsetlist *list, 1349 int need_copy) 1350 { 1351 int i, contig_ents; 1352 int error; 1353 struct mtparamset *params, *first; 1354 struct sa_param_ent *first_ent; 1355 1356 error = 0; 1357 params = NULL; 1358 1359 if (list->num_params == 0) 1360 /* Nothing to do */ 1361 goto bailout; 1362 1363 /* 1364 * Verify that the user has the correct structure size. 1365 */ 1366 if ((list->num_params * sizeof(struct mtparamset)) != 1367 list->param_len) { 1368 xpt_print(periph->path, "%s: length of params %d != " 1369 "sizeof(struct mtparamset) %zd * num_params %d\n", 1370 __func__, list->param_len, sizeof(struct mtparamset), 1371 list->num_params); 1372 error = EINVAL; 1373 goto bailout; 1374 } 1375 1376 if (need_copy != 0) { 1377 /* 1378 * XXX KDM will dropping the lock cause an issue here? 1379 */ 1380 cam_periph_unlock(periph); 1381 params = malloc(list->param_len, M_SCSISA, M_WAITOK | M_ZERO); 1382 error = copyin(list->params, params, list->param_len); 1383 cam_periph_lock(periph); 1384 1385 if (error != 0) 1386 goto bailout; 1387 } else { 1388 params = list->params; 1389 } 1390 1391 contig_ents = 0; 1392 first = NULL; 1393 first_ent = NULL; 1394 for (i = 0; i < list->num_params; i++) { 1395 struct sa_param_ent *ent; 1396 1397 ent = safindparament(¶ms[i]); 1398 if (ent == NULL) { 1399 snprintf(params[i].error_str, 1400 sizeof(params[i].error_str), 1401 "%s: cannot find parameter %s", __func__, 1402 params[i].value_name); 1403 params[i].status = MT_PARAM_STATUS_ERROR; 1404 break; 1405 } 1406 1407 if (first != NULL) { 1408 if (first_ent == ent) { 1409 /* 1410 * We're still in a contiguous list of 1411 * parameters that can be handled by one 1412 * node handler. 1413 */ 1414 contig_ents++; 1415 continue; 1416 } else { 1417 error = first_ent->set_func(periph, first, 1418 contig_ents); 1419 first = NULL; 1420 first_ent = NULL; 1421 contig_ents = 0; 1422 if (error != 0) { 1423 error = 0; 1424 break; 1425 } 1426 } 1427 } 1428 if (ent->param_type == SA_PARAM_TYPE_NODE) { 1429 first = ¶ms[i]; 1430 first_ent = ent; 1431 contig_ents = 1; 1432 } else { 1433 error = ent->set_func(periph, ¶ms[i], 1); 1434 if (error != 0) { 1435 error = 0; 1436 break; 1437 } 1438 } 1439 } 1440 if (first != NULL) 1441 first_ent->set_func(periph, first, contig_ents); 1442 1443 bailout: 1444 if (need_copy != 0) { 1445 if (error != EFAULT) { 1446 cam_periph_unlock(periph); 1447 copyout(params, list->params, list->param_len); 1448 cam_periph_lock(periph); 1449 } 1450 free(params, M_SCSISA); 1451 } 1452 return (error); 1453 } 1454 1455 static int 1456 sagetparams_common(struct cdev *dev, struct cam_periph *periph) 1457 { 1458 struct sa_softc *softc; 1459 u_int8_t write_protect; 1460 int comp_enabled, comp_supported, error; 1461 1462 softc = (struct sa_softc *)periph->softc; 1463 1464 if (softc->open_pending_mount) 1465 return (0); 1466 1467 /* The control device may issue getparams() if there are no opens. */ 1468 if (SA_IS_CTRL(dev) && (softc->flags & SA_FLAG_OPEN) != 0) 1469 return (0); 1470 1471 error = sagetparams(periph, SA_PARAM_ALL, &softc->media_blksize, 1472 &softc->media_density, &softc->media_numblks, &softc->buffer_mode, 1473 &write_protect, &softc->speed, &comp_supported, &comp_enabled, 1474 &softc->comp_algorithm, NULL, NULL, 0, 0); 1475 if (error) 1476 return (error); 1477 if (write_protect) 1478 softc->flags |= SA_FLAG_TAPE_WP; 1479 else 1480 softc->flags &= ~SA_FLAG_TAPE_WP; 1481 softc->flags &= ~SA_FLAG_COMPRESSION; 1482 if (comp_supported) { 1483 if (softc->saved_comp_algorithm == 0) 1484 softc->saved_comp_algorithm = 1485 softc->comp_algorithm; 1486 softc->flags |= SA_FLAG_COMP_SUPP; 1487 if (comp_enabled) 1488 softc->flags |= SA_FLAG_COMP_ENABLED; 1489 } else 1490 softc->flags |= SA_FLAG_COMP_UNSUPP; 1491 1492 return (0); 1493 } 1494 1495 #define PENDING_MOUNT_CHECK(softc, periph, dev) \ 1496 if (softc->open_pending_mount) { \ 1497 error = samount(periph, 0, dev); \ 1498 if (error) { \ 1499 break; \ 1500 } \ 1501 saprevent(periph, PR_PREVENT); \ 1502 softc->open_pending_mount = 0; \ 1503 } 1504 1505 static int 1506 saioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 1507 { 1508 struct cam_periph *periph; 1509 struct sa_softc *softc; 1510 scsi_space_code spaceop; 1511 int didlockperiph = 0; 1512 int mode; 1513 int error = 0; 1514 1515 mode = SAMODE(dev); 1516 error = 0; /* shut up gcc */ 1517 spaceop = 0; /* shut up gcc */ 1518 1519 periph = (struct cam_periph *)dev->si_drv1; 1520 if (periph == NULL) 1521 return (ENXIO); 1522 1523 cam_periph_lock(periph); 1524 softc = (struct sa_softc *)periph->softc; 1525 1526 /* 1527 * Check for control mode accesses. We allow MTIOCGET and 1528 * MTIOCERRSTAT (but need to be the only one open in order 1529 * to clear latched status), and MTSETBSIZE, MTSETDNSTY 1530 * and MTCOMP (but need to be the only one accessing this 1531 * device to run those). 1532 */ 1533 1534 if (SA_IS_CTRL(dev)) { 1535 switch (cmd) { 1536 case MTIOCGETEOTMODEL: 1537 case MTIOCGET: 1538 case MTIOCEXTGET: 1539 case MTIOCPARAMGET: 1540 case MTIOCRBLIM: 1541 break; 1542 case MTIOCERRSTAT: 1543 /* 1544 * If the periph isn't already locked, lock it 1545 * so our MTIOCERRSTAT can reset latched error stats. 1546 * 1547 * If the periph is already locked, skip it because 1548 * we're just getting status and it'll be up to the 1549 * other thread that has this device open to do 1550 * an MTIOCERRSTAT that would clear latched status. 1551 */ 1552 if ((periph->flags & CAM_PERIPH_LOCKED) == 0) { 1553 error = cam_periph_hold(periph, PRIBIO|PCATCH); 1554 if (error != 0) { 1555 cam_periph_unlock(periph); 1556 return (error); 1557 } 1558 didlockperiph = 1; 1559 } 1560 break; 1561 1562 case MTIOCTOP: 1563 { 1564 struct mtop *mt = (struct mtop *) arg; 1565 1566 /* 1567 * Check to make sure it's an OP we can perform 1568 * with no media inserted. 1569 */ 1570 switch (mt->mt_op) { 1571 case MTSETBSIZ: 1572 case MTSETDNSTY: 1573 case MTCOMP: 1574 mt = NULL; 1575 /* FALLTHROUGH */ 1576 default: 1577 break; 1578 } 1579 if (mt != NULL) { 1580 break; 1581 } 1582 /* FALLTHROUGH */ 1583 } 1584 case MTIOCSETEOTMODEL: 1585 /* 1586 * We need to acquire the peripheral here rather 1587 * than at open time because we are sharing writable 1588 * access to data structures. 1589 */ 1590 error = cam_periph_hold(periph, PRIBIO|PCATCH); 1591 if (error != 0) { 1592 cam_periph_unlock(periph); 1593 return (error); 1594 } 1595 didlockperiph = 1; 1596 break; 1597 1598 default: 1599 cam_periph_unlock(periph); 1600 return (EINVAL); 1601 } 1602 } 1603 1604 /* 1605 * Find the device that the user is talking about 1606 */ 1607 switch (cmd) { 1608 case MTIOCGET: 1609 { 1610 struct mtget *g = (struct mtget *)arg; 1611 1612 error = sagetparams_common(dev, periph); 1613 if (error) 1614 break; 1615 bzero(g, sizeof(struct mtget)); 1616 g->mt_type = MT_ISAR; 1617 if (softc->flags & SA_FLAG_COMP_UNSUPP) { 1618 g->mt_comp = MT_COMP_UNSUPP; 1619 g->mt_comp0 = MT_COMP_UNSUPP; 1620 g->mt_comp1 = MT_COMP_UNSUPP; 1621 g->mt_comp2 = MT_COMP_UNSUPP; 1622 g->mt_comp3 = MT_COMP_UNSUPP; 1623 } else { 1624 if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) { 1625 g->mt_comp = MT_COMP_DISABLED; 1626 } else { 1627 g->mt_comp = softc->comp_algorithm; 1628 } 1629 g->mt_comp0 = softc->comp_algorithm; 1630 g->mt_comp1 = softc->comp_algorithm; 1631 g->mt_comp2 = softc->comp_algorithm; 1632 g->mt_comp3 = softc->comp_algorithm; 1633 } 1634 g->mt_density = softc->media_density; 1635 g->mt_density0 = softc->media_density; 1636 g->mt_density1 = softc->media_density; 1637 g->mt_density2 = softc->media_density; 1638 g->mt_density3 = softc->media_density; 1639 g->mt_blksiz = softc->media_blksize; 1640 g->mt_blksiz0 = softc->media_blksize; 1641 g->mt_blksiz1 = softc->media_blksize; 1642 g->mt_blksiz2 = softc->media_blksize; 1643 g->mt_blksiz3 = softc->media_blksize; 1644 g->mt_fileno = softc->fileno; 1645 g->mt_blkno = softc->blkno; 1646 g->mt_dsreg = (short) softc->dsreg; 1647 /* 1648 * Yes, we know that this is likely to overflow 1649 */ 1650 if (softc->last_resid_was_io) { 1651 if ((g->mt_resid = (short) softc->last_io_resid) != 0) { 1652 if (SA_IS_CTRL(dev) == 0 || didlockperiph) { 1653 softc->last_io_resid = 0; 1654 } 1655 } 1656 } else { 1657 if ((g->mt_resid = (short)softc->last_ctl_resid) != 0) { 1658 if (SA_IS_CTRL(dev) == 0 || didlockperiph) { 1659 softc->last_ctl_resid = 0; 1660 } 1661 } 1662 } 1663 error = 0; 1664 break; 1665 } 1666 case MTIOCEXTGET: 1667 case MTIOCPARAMGET: 1668 { 1669 struct mtextget *g = (struct mtextget *)arg; 1670 char *tmpstr2; 1671 struct sbuf *sb; 1672 1673 /* 1674 * Report drive status using an XML format. 1675 */ 1676 1677 /* 1678 * XXX KDM will dropping the lock cause any problems here? 1679 */ 1680 cam_periph_unlock(periph); 1681 sb = sbuf_new(NULL, NULL, g->alloc_len, SBUF_FIXEDLEN); 1682 if (sb == NULL) { 1683 g->status = MT_EXT_GET_ERROR; 1684 snprintf(g->error_str, sizeof(g->error_str), 1685 "Unable to allocate %d bytes for status info", 1686 g->alloc_len); 1687 cam_periph_lock(periph); 1688 goto extget_bailout; 1689 } 1690 cam_periph_lock(periph); 1691 1692 if (cmd == MTIOCEXTGET) 1693 error = saextget(dev, periph, sb, g); 1694 else 1695 error = saparamget(softc, sb); 1696 1697 if (error != 0) 1698 goto extget_bailout; 1699 1700 error = sbuf_finish(sb); 1701 if (error == ENOMEM) { 1702 g->status = MT_EXT_GET_NEED_MORE_SPACE; 1703 error = 0; 1704 } else if (error != 0) { 1705 g->status = MT_EXT_GET_ERROR; 1706 snprintf(g->error_str, sizeof(g->error_str), 1707 "Error %d returned from sbuf_finish()", error); 1708 } else 1709 g->status = MT_EXT_GET_OK; 1710 1711 error = 0; 1712 tmpstr2 = sbuf_data(sb); 1713 g->fill_len = strlen(tmpstr2) + 1; 1714 cam_periph_unlock(periph); 1715 1716 error = copyout(tmpstr2, g->status_xml, g->fill_len); 1717 1718 cam_periph_lock(periph); 1719 1720 extget_bailout: 1721 sbuf_delete(sb); 1722 break; 1723 } 1724 case MTIOCPARAMSET: 1725 { 1726 struct mtsetlist list; 1727 struct mtparamset *ps = (struct mtparamset *)arg; 1728 1729 bzero(&list, sizeof(list)); 1730 list.num_params = 1; 1731 list.param_len = sizeof(*ps); 1732 list.params = ps; 1733 1734 error = saparamsetlist(periph, &list, /*need_copy*/ 0); 1735 break; 1736 } 1737 case MTIOCSETLIST: 1738 { 1739 struct mtsetlist *list = (struct mtsetlist *)arg; 1740 1741 error = saparamsetlist(periph, list, /*need_copy*/ 1); 1742 break; 1743 } 1744 case MTIOCERRSTAT: 1745 { 1746 struct scsi_tape_errors *sep = 1747 &((union mterrstat *)arg)->scsi_errstat; 1748 1749 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1750 ("saioctl: MTIOCERRSTAT\n")); 1751 1752 bzero(sep, sizeof(*sep)); 1753 sep->io_resid = softc->last_io_resid; 1754 bcopy((caddr_t) &softc->last_io_sense, sep->io_sense, 1755 sizeof (sep->io_sense)); 1756 bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb, 1757 sizeof (sep->io_cdb)); 1758 sep->ctl_resid = softc->last_ctl_resid; 1759 bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense, 1760 sizeof (sep->ctl_sense)); 1761 bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb, 1762 sizeof (sep->ctl_cdb)); 1763 1764 if ((SA_IS_CTRL(dev) == 0 && !softc->open_pending_mount) || 1765 didlockperiph) 1766 bzero((caddr_t) &softc->errinfo, 1767 sizeof (softc->errinfo)); 1768 error = 0; 1769 break; 1770 } 1771 case MTIOCTOP: 1772 { 1773 struct mtop *mt; 1774 int count; 1775 1776 PENDING_MOUNT_CHECK(softc, periph, dev); 1777 1778 mt = (struct mtop *)arg; 1779 1780 1781 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1782 ("saioctl: op=0x%x count=0x%x\n", 1783 mt->mt_op, mt->mt_count)); 1784 1785 count = mt->mt_count; 1786 switch (mt->mt_op) { 1787 case MTWEOF: /* write an end-of-file marker */ 1788 /* 1789 * We don't need to clear the SA_FLAG_TAPE_WRITTEN 1790 * flag because by keeping track of filemarks 1791 * we have last written we know whether or not 1792 * we need to write more when we close the device. 1793 */ 1794 error = sawritefilemarks(periph, count, FALSE, FALSE); 1795 break; 1796 case MTWEOFI: 1797 /* write an end-of-file marker without waiting */ 1798 error = sawritefilemarks(periph, count, FALSE, TRUE); 1799 break; 1800 case MTWSS: /* write a setmark */ 1801 error = sawritefilemarks(periph, count, TRUE, FALSE); 1802 break; 1803 case MTBSR: /* backward space record */ 1804 case MTFSR: /* forward space record */ 1805 case MTBSF: /* backward space file */ 1806 case MTFSF: /* forward space file */ 1807 case MTBSS: /* backward space setmark */ 1808 case MTFSS: /* forward space setmark */ 1809 case MTEOD: /* space to end of recorded medium */ 1810 { 1811 int nmarks; 1812 1813 spaceop = SS_FILEMARKS; 1814 nmarks = softc->filemarks; 1815 error = sacheckeod(periph); 1816 if (error) { 1817 xpt_print(periph->path, 1818 "EOD check prior to spacing failed\n"); 1819 softc->flags |= SA_FLAG_EIO_PENDING; 1820 break; 1821 } 1822 nmarks -= softc->filemarks; 1823 switch(mt->mt_op) { 1824 case MTBSR: 1825 count = -count; 1826 /* FALLTHROUGH */ 1827 case MTFSR: 1828 spaceop = SS_BLOCKS; 1829 break; 1830 case MTBSF: 1831 count = -count; 1832 /* FALLTHROUGH */ 1833 case MTFSF: 1834 break; 1835 case MTBSS: 1836 count = -count; 1837 /* FALLTHROUGH */ 1838 case MTFSS: 1839 spaceop = SS_SETMARKS; 1840 break; 1841 case MTEOD: 1842 spaceop = SS_EOD; 1843 count = 0; 1844 nmarks = 0; 1845 break; 1846 default: 1847 error = EINVAL; 1848 break; 1849 } 1850 if (error) 1851 break; 1852 1853 nmarks = softc->filemarks; 1854 /* 1855 * XXX: Why are we checking again? 1856 */ 1857 error = sacheckeod(periph); 1858 if (error) 1859 break; 1860 nmarks -= softc->filemarks; 1861 error = saspace(periph, count - nmarks, spaceop); 1862 /* 1863 * At this point, clear that we've written the tape 1864 * and that we've written any filemarks. We really 1865 * don't know what the applications wishes to do next- 1866 * the sacheckeod's will make sure we terminated the 1867 * tape correctly if we'd been writing, but the next 1868 * action the user application takes will set again 1869 * whether we need to write filemarks. 1870 */ 1871 softc->flags &= 1872 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1873 softc->filemarks = 0; 1874 break; 1875 } 1876 case MTREW: /* rewind */ 1877 PENDING_MOUNT_CHECK(softc, periph, dev); 1878 (void) sacheckeod(periph); 1879 error = sarewind(periph); 1880 /* see above */ 1881 softc->flags &= 1882 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1883 softc->flags &= ~SA_FLAG_ERR_PENDING; 1884 softc->filemarks = 0; 1885 break; 1886 case MTERASE: /* erase */ 1887 PENDING_MOUNT_CHECK(softc, periph, dev); 1888 error = saerase(periph, count); 1889 softc->flags &= 1890 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1891 softc->flags &= ~SA_FLAG_ERR_PENDING; 1892 break; 1893 case MTRETENS: /* re-tension tape */ 1894 PENDING_MOUNT_CHECK(softc, periph, dev); 1895 error = saretension(periph); 1896 softc->flags &= 1897 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1898 softc->flags &= ~SA_FLAG_ERR_PENDING; 1899 break; 1900 case MTOFFL: /* rewind and put the drive offline */ 1901 1902 PENDING_MOUNT_CHECK(softc, periph, dev); 1903 1904 (void) sacheckeod(periph); 1905 /* see above */ 1906 softc->flags &= ~SA_FLAG_TAPE_WRITTEN; 1907 softc->filemarks = 0; 1908 1909 error = sarewind(periph); 1910 /* clear the frozen flag anyway */ 1911 softc->flags &= ~SA_FLAG_TAPE_FROZEN; 1912 1913 /* 1914 * Be sure to allow media removal before ejecting. 1915 */ 1916 1917 saprevent(periph, PR_ALLOW); 1918 if (error == 0) { 1919 error = saloadunload(periph, FALSE); 1920 if (error == 0) { 1921 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 1922 } 1923 } 1924 break; 1925 1926 case MTLOAD: 1927 error = saloadunload(periph, TRUE); 1928 break; 1929 case MTNOP: /* no operation, sets status only */ 1930 case MTCACHE: /* enable controller cache */ 1931 case MTNOCACHE: /* disable controller cache */ 1932 error = 0; 1933 break; 1934 1935 case MTSETBSIZ: /* Set block size for device */ 1936 1937 PENDING_MOUNT_CHECK(softc, periph, dev); 1938 1939 if ((softc->sili != 0) 1940 && (count != 0)) { 1941 xpt_print(periph->path, "Can't enter fixed " 1942 "block mode with SILI enabled\n"); 1943 error = EINVAL; 1944 break; 1945 } 1946 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count, 1947 0, 0, 0); 1948 if (error == 0) { 1949 softc->last_media_blksize = 1950 softc->media_blksize; 1951 softc->media_blksize = count; 1952 if (count) { 1953 softc->flags |= SA_FLAG_FIXED; 1954 if (powerof2(count)) { 1955 softc->blk_shift = 1956 ffs(count) - 1; 1957 softc->blk_mask = count - 1; 1958 } else { 1959 softc->blk_mask = ~0; 1960 softc->blk_shift = 0; 1961 } 1962 /* 1963 * Make the user's desire 'persistent'. 1964 */ 1965 softc->quirks &= ~SA_QUIRK_VARIABLE; 1966 softc->quirks |= SA_QUIRK_FIXED; 1967 } else { 1968 softc->flags &= ~SA_FLAG_FIXED; 1969 if (softc->max_blk == 0) { 1970 softc->max_blk = ~0; 1971 } 1972 softc->blk_shift = 0; 1973 if (softc->blk_gran != 0) { 1974 softc->blk_mask = 1975 softc->blk_gran - 1; 1976 } else { 1977 softc->blk_mask = 0; 1978 } 1979 /* 1980 * Make the user's desire 'persistent'. 1981 */ 1982 softc->quirks |= SA_QUIRK_VARIABLE; 1983 softc->quirks &= ~SA_QUIRK_FIXED; 1984 } 1985 } 1986 break; 1987 case MTSETDNSTY: /* Set density for device and mode */ 1988 PENDING_MOUNT_CHECK(softc, periph, dev); 1989 1990 if (count > UCHAR_MAX) { 1991 error = EINVAL; 1992 break; 1993 } else { 1994 error = sasetparams(periph, SA_PARAM_DENSITY, 1995 0, count, 0, 0); 1996 } 1997 break; 1998 case MTCOMP: /* enable compression */ 1999 PENDING_MOUNT_CHECK(softc, periph, dev); 2000 /* 2001 * Some devices don't support compression, and 2002 * don't like it if you ask them for the 2003 * compression page. 2004 */ 2005 if ((softc->quirks & SA_QUIRK_NOCOMP) || 2006 (softc->flags & SA_FLAG_COMP_UNSUPP)) { 2007 error = ENODEV; 2008 break; 2009 } 2010 error = sasetparams(periph, SA_PARAM_COMPRESSION, 2011 0, 0, count, SF_NO_PRINT); 2012 break; 2013 default: 2014 error = EINVAL; 2015 } 2016 break; 2017 } 2018 case MTIOCIEOT: 2019 case MTIOCEEOT: 2020 error = 0; 2021 break; 2022 case MTIOCRDSPOS: 2023 PENDING_MOUNT_CHECK(softc, periph, dev); 2024 error = sardpos(periph, 0, (u_int32_t *) arg); 2025 break; 2026 case MTIOCRDHPOS: 2027 PENDING_MOUNT_CHECK(softc, periph, dev); 2028 error = sardpos(periph, 1, (u_int32_t *) arg); 2029 break; 2030 case MTIOCSLOCATE: 2031 case MTIOCHLOCATE: { 2032 struct mtlocate locate_info; 2033 int hard; 2034 2035 bzero(&locate_info, sizeof(locate_info)); 2036 locate_info.logical_id = *((uint32_t *)arg); 2037 if (cmd == MTIOCSLOCATE) 2038 hard = 0; 2039 else 2040 hard = 1; 2041 2042 PENDING_MOUNT_CHECK(softc, periph, dev); 2043 2044 error = sasetpos(periph, hard, &locate_info); 2045 break; 2046 } 2047 case MTIOCEXTLOCATE: 2048 PENDING_MOUNT_CHECK(softc, periph, dev); 2049 error = sasetpos(periph, /*hard*/ 0, (struct mtlocate *)arg); 2050 softc->flags &= 2051 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 2052 softc->flags &= ~SA_FLAG_ERR_PENDING; 2053 softc->filemarks = 0; 2054 break; 2055 case MTIOCGETEOTMODEL: 2056 error = 0; 2057 if (softc->quirks & SA_QUIRK_1FM) 2058 mode = 1; 2059 else 2060 mode = 2; 2061 *((u_int32_t *) arg) = mode; 2062 break; 2063 case MTIOCSETEOTMODEL: 2064 error = 0; 2065 switch (*((u_int32_t *) arg)) { 2066 case 1: 2067 softc->quirks &= ~SA_QUIRK_2FM; 2068 softc->quirks |= SA_QUIRK_1FM; 2069 break; 2070 case 2: 2071 softc->quirks &= ~SA_QUIRK_1FM; 2072 softc->quirks |= SA_QUIRK_2FM; 2073 break; 2074 default: 2075 error = EINVAL; 2076 break; 2077 } 2078 break; 2079 case MTIOCRBLIM: { 2080 struct mtrblim *rblim; 2081 2082 rblim = (struct mtrblim *)arg; 2083 2084 rblim->granularity = softc->blk_gran; 2085 rblim->min_block_length = softc->min_blk; 2086 rblim->max_block_length = softc->max_blk; 2087 break; 2088 } 2089 default: 2090 error = cam_periph_ioctl(periph, cmd, arg, saerror); 2091 break; 2092 } 2093 2094 /* 2095 * Check to see if we cleared a frozen state 2096 */ 2097 if (error == 0 && (softc->flags & SA_FLAG_TAPE_FROZEN)) { 2098 switch(cmd) { 2099 case MTIOCRDSPOS: 2100 case MTIOCRDHPOS: 2101 case MTIOCSLOCATE: 2102 case MTIOCHLOCATE: 2103 /* 2104 * XXX KDM look at this. 2105 */ 2106 softc->fileno = (daddr_t) -1; 2107 softc->blkno = (daddr_t) -1; 2108 softc->rep_blkno = (daddr_t) -1; 2109 softc->rep_fileno = (daddr_t) -1; 2110 softc->partition = (daddr_t) -1; 2111 softc->flags &= ~SA_FLAG_TAPE_FROZEN; 2112 xpt_print(periph->path, 2113 "tape state now unfrozen.\n"); 2114 break; 2115 default: 2116 break; 2117 } 2118 } 2119 if (didlockperiph) { 2120 cam_periph_unhold(periph); 2121 } 2122 cam_periph_unlock(periph); 2123 return (error); 2124 } 2125 2126 static void 2127 sainit(void) 2128 { 2129 cam_status status; 2130 2131 /* 2132 * Install a global async callback. 2133 */ 2134 status = xpt_register_async(AC_FOUND_DEVICE, saasync, NULL, NULL); 2135 2136 if (status != CAM_REQ_CMP) { 2137 printf("sa: Failed to attach master async callback " 2138 "due to status 0x%x!\n", status); 2139 } 2140 } 2141 2142 static void 2143 sadevgonecb(void *arg) 2144 { 2145 struct cam_periph *periph; 2146 struct mtx *mtx; 2147 struct sa_softc *softc; 2148 2149 periph = (struct cam_periph *)arg; 2150 softc = (struct sa_softc *)periph->softc; 2151 2152 mtx = cam_periph_mtx(periph); 2153 mtx_lock(mtx); 2154 2155 softc->num_devs_to_destroy--; 2156 if (softc->num_devs_to_destroy == 0) { 2157 int i; 2158 2159 /* 2160 * When we have gotten all of our callbacks, we will get 2161 * no more close calls from devfs. So if we have any 2162 * dangling opens, we need to release the reference held 2163 * for that particular context. 2164 */ 2165 for (i = 0; i < softc->open_count; i++) 2166 cam_periph_release_locked(periph); 2167 2168 softc->open_count = 0; 2169 2170 /* 2171 * Release the reference held for devfs, all of our 2172 * instances are gone now. 2173 */ 2174 cam_periph_release_locked(periph); 2175 } 2176 2177 /* 2178 * We reference the lock directly here, instead of using 2179 * cam_periph_unlock(). The reason is that the final call to 2180 * cam_periph_release_locked() above could result in the periph 2181 * getting freed. If that is the case, dereferencing the periph 2182 * with a cam_periph_unlock() call would cause a page fault. 2183 */ 2184 mtx_unlock(mtx); 2185 } 2186 2187 static void 2188 saoninvalidate(struct cam_periph *periph) 2189 { 2190 struct sa_softc *softc; 2191 2192 softc = (struct sa_softc *)periph->softc; 2193 2194 /* 2195 * De-register any async callbacks. 2196 */ 2197 xpt_register_async(0, saasync, periph, periph->path); 2198 2199 softc->flags |= SA_FLAG_INVALID; 2200 2201 /* 2202 * Return all queued I/O with ENXIO. 2203 * XXX Handle any transactions queued to the card 2204 * with XPT_ABORT_CCB. 2205 */ 2206 bioq_flush(&softc->bio_queue, NULL, ENXIO); 2207 softc->queue_count = 0; 2208 2209 /* 2210 * Tell devfs that all of our devices have gone away, and ask for a 2211 * callback when it has cleaned up its state. 2212 */ 2213 destroy_dev_sched_cb(softc->devs.ctl_dev, sadevgonecb, periph); 2214 destroy_dev_sched_cb(softc->devs.r_dev, sadevgonecb, periph); 2215 destroy_dev_sched_cb(softc->devs.nr_dev, sadevgonecb, periph); 2216 destroy_dev_sched_cb(softc->devs.er_dev, sadevgonecb, periph); 2217 } 2218 2219 static void 2220 sacleanup(struct cam_periph *periph) 2221 { 2222 struct sa_softc *softc; 2223 2224 softc = (struct sa_softc *)periph->softc; 2225 2226 cam_periph_unlock(periph); 2227 2228 if ((softc->flags & SA_FLAG_SCTX_INIT) != 0 2229 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) 2230 xpt_print(periph->path, "can't remove sysctl context\n"); 2231 2232 cam_periph_lock(periph); 2233 2234 devstat_remove_entry(softc->device_stats); 2235 2236 free(softc, M_SCSISA); 2237 } 2238 2239 static void 2240 saasync(void *callback_arg, u_int32_t code, 2241 struct cam_path *path, void *arg) 2242 { 2243 struct cam_periph *periph; 2244 2245 periph = (struct cam_periph *)callback_arg; 2246 switch (code) { 2247 case AC_FOUND_DEVICE: 2248 { 2249 struct ccb_getdev *cgd; 2250 cam_status status; 2251 2252 cgd = (struct ccb_getdev *)arg; 2253 if (cgd == NULL) 2254 break; 2255 2256 if (cgd->protocol != PROTO_SCSI) 2257 break; 2258 2259 if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL) 2260 break; 2261 2262 /* 2263 * Allocate a peripheral instance for 2264 * this device and start the probe 2265 * process. 2266 */ 2267 status = cam_periph_alloc(saregister, saoninvalidate, 2268 sacleanup, sastart, 2269 "sa", CAM_PERIPH_BIO, path, 2270 saasync, AC_FOUND_DEVICE, cgd); 2271 2272 if (status != CAM_REQ_CMP 2273 && status != CAM_REQ_INPROG) 2274 printf("saasync: Unable to probe new device " 2275 "due to status 0x%x\n", status); 2276 break; 2277 } 2278 default: 2279 cam_periph_async(periph, code, path, arg); 2280 break; 2281 } 2282 } 2283 2284 static void 2285 sasetupdev(struct sa_softc *softc, struct cdev *dev) 2286 { 2287 dev->si_drv1 = softc->periph; 2288 dev->si_iosize_max = softc->maxio; 2289 dev->si_flags |= softc->si_flags; 2290 /* 2291 * Keep a count of how many non-alias devices we have created, 2292 * so we can make sure we clean them all up on shutdown. Aliases 2293 * are cleaned up when we destroy the device they're an alias for. 2294 */ 2295 if ((dev->si_flags & SI_ALIAS) == 0) 2296 softc->num_devs_to_destroy++; 2297 } 2298 2299 static void 2300 sasysctlinit(void *context, int pending) 2301 { 2302 struct cam_periph *periph; 2303 struct sa_softc *softc; 2304 char tmpstr[80], tmpstr2[80]; 2305 2306 periph = (struct cam_periph *)context; 2307 /* 2308 * If the periph is invalid, no need to setup the sysctls. 2309 */ 2310 if (periph->flags & CAM_PERIPH_INVALID) 2311 goto bailout; 2312 2313 softc = (struct sa_softc *)periph->softc; 2314 2315 snprintf(tmpstr, sizeof(tmpstr), "CAM SA unit %d", periph->unit_number); 2316 snprintf(tmpstr2, sizeof(tmpstr2), "%u", periph->unit_number); 2317 2318 sysctl_ctx_init(&softc->sysctl_ctx); 2319 softc->flags |= SA_FLAG_SCTX_INIT; 2320 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 2321 SYSCTL_STATIC_CHILDREN(_kern_cam_sa), OID_AUTO, tmpstr2, 2322 CTLFLAG_RD, 0, tmpstr); 2323 if (softc->sysctl_tree == NULL) 2324 goto bailout; 2325 2326 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2327 OID_AUTO, "allow_io_split", CTLFLAG_RDTUN | CTLFLAG_NOFETCH, 2328 &softc->allow_io_split, 0, "Allow Splitting I/O"); 2329 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2330 OID_AUTO, "maxio", CTLFLAG_RD, 2331 &softc->maxio, 0, "Maximum I/O size"); 2332 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 2333 OID_AUTO, "cpi_maxio", CTLFLAG_RD, 2334 &softc->cpi_maxio, 0, "Maximum Controller I/O size"); 2335 2336 bailout: 2337 /* 2338 * Release the reference that was held when this task was enqueued. 2339 */ 2340 cam_periph_release(periph); 2341 } 2342 2343 static cam_status 2344 saregister(struct cam_periph *periph, void *arg) 2345 { 2346 struct sa_softc *softc; 2347 struct ccb_getdev *cgd; 2348 struct ccb_pathinq cpi; 2349 caddr_t match; 2350 char tmpstr[80]; 2351 2352 cgd = (struct ccb_getdev *)arg; 2353 if (cgd == NULL) { 2354 printf("saregister: no getdev CCB, can't register device\n"); 2355 return (CAM_REQ_CMP_ERR); 2356 } 2357 2358 softc = (struct sa_softc *) 2359 malloc(sizeof (*softc), M_SCSISA, M_NOWAIT | M_ZERO); 2360 if (softc == NULL) { 2361 printf("saregister: Unable to probe new device. " 2362 "Unable to allocate softc\n"); 2363 return (CAM_REQ_CMP_ERR); 2364 } 2365 softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data); 2366 softc->state = SA_STATE_NORMAL; 2367 softc->fileno = (daddr_t) -1; 2368 softc->blkno = (daddr_t) -1; 2369 softc->rep_fileno = (daddr_t) -1; 2370 softc->rep_blkno = (daddr_t) -1; 2371 softc->partition = (daddr_t) -1; 2372 softc->bop = -1; 2373 softc->eop = -1; 2374 softc->bpew = -1; 2375 2376 bioq_init(&softc->bio_queue); 2377 softc->periph = periph; 2378 periph->softc = softc; 2379 2380 /* 2381 * See if this device has any quirks. 2382 */ 2383 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 2384 (caddr_t)sa_quirk_table, 2385 sizeof(sa_quirk_table)/sizeof(*sa_quirk_table), 2386 sizeof(*sa_quirk_table), scsi_inquiry_match); 2387 2388 if (match != NULL) { 2389 softc->quirks = ((struct sa_quirk_entry *)match)->quirks; 2390 softc->last_media_blksize = 2391 ((struct sa_quirk_entry *)match)->prefblk; 2392 } else 2393 softc->quirks = SA_QUIRK_NONE; 2394 2395 /* 2396 * Long format data for READ POSITION was introduced in SSC, which 2397 * was after SCSI-2. (Roughly equivalent to SCSI-3.) If the drive 2398 * reports that it is SCSI-2 or older, it is unlikely to support 2399 * long position data. 2400 */ 2401 if (cgd->inq_data.version <= SCSI_REV_2) 2402 softc->quirks |= SA_QUIRK_NO_LONG_POS; 2403 2404 if (cgd->inq_data.spc3_flags & SPC3_SID_PROTECT) { 2405 struct ccb_dev_advinfo cdai; 2406 struct scsi_vpd_extended_inquiry_data ext_inq; 2407 2408 bzero(&ext_inq, sizeof(ext_inq)); 2409 2410 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 2411 2412 cdai.ccb_h.func_code = XPT_DEV_ADVINFO; 2413 cdai.flags = CDAI_FLAG_NONE; 2414 cdai.buftype = CDAI_TYPE_EXT_INQ; 2415 cdai.bufsiz = sizeof(ext_inq); 2416 cdai.buf = (uint8_t *)&ext_inq; 2417 xpt_action((union ccb *)&cdai); 2418 2419 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0) 2420 cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE); 2421 if ((cdai.ccb_h.status == CAM_REQ_CMP) 2422 && (ext_inq.flags1 & SVPD_EID_SA_SPT_LBP)) 2423 softc->flags |= SA_FLAG_PROTECT_SUPP; 2424 } 2425 2426 bzero(&cpi, sizeof(cpi)); 2427 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 2428 cpi.ccb_h.func_code = XPT_PATH_INQ; 2429 xpt_action((union ccb *)&cpi); 2430 2431 /* 2432 * The SA driver supports a blocksize, but we don't know the 2433 * blocksize until we media is inserted. So, set a flag to 2434 * indicate that the blocksize is unavailable right now. 2435 */ 2436 cam_periph_unlock(periph); 2437 softc->device_stats = devstat_new_entry("sa", periph->unit_number, 0, 2438 DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) | 2439 XPORT_DEVSTAT_TYPE(cpi.transport), DEVSTAT_PRIORITY_TAPE); 2440 2441 /* 2442 * Load the default value that is either compiled in, or loaded 2443 * in the global kern.cam.sa.allow_io_split tunable. 2444 */ 2445 softc->allow_io_split = sa_allow_io_split; 2446 2447 /* 2448 * Load a per-instance tunable, if it exists. NOTE that this 2449 * tunable WILL GO AWAY in FreeBSD 11.0. 2450 */ 2451 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.sa.%u.allow_io_split", 2452 periph->unit_number); 2453 TUNABLE_INT_FETCH(tmpstr, &softc->allow_io_split); 2454 2455 /* 2456 * If maxio isn't set, we fall back to DFLTPHYS. Otherwise we take 2457 * the smaller of cpi.maxio or MAXPHYS. 2458 */ 2459 if (cpi.maxio == 0) 2460 softc->maxio = DFLTPHYS; 2461 else if (cpi.maxio > MAXPHYS) 2462 softc->maxio = MAXPHYS; 2463 else 2464 softc->maxio = cpi.maxio; 2465 2466 /* 2467 * Record the controller's maximum I/O size so we can report it to 2468 * the user later. 2469 */ 2470 softc->cpi_maxio = cpi.maxio; 2471 2472 /* 2473 * By default we tell physio that we do not want our I/O split. 2474 * The user needs to have a 1:1 mapping between the size of his 2475 * write to a tape character device and the size of the write 2476 * that actually goes down to the drive. 2477 */ 2478 if (softc->allow_io_split == 0) 2479 softc->si_flags = SI_NOSPLIT; 2480 else 2481 softc->si_flags = 0; 2482 2483 TASK_INIT(&softc->sysctl_task, 0, sasysctlinit, periph); 2484 2485 /* 2486 * If the SIM supports unmapped I/O, let physio know that we can 2487 * handle unmapped buffers. 2488 */ 2489 if (cpi.hba_misc & PIM_UNMAPPED) 2490 softc->si_flags |= SI_UNMAPPED; 2491 2492 /* 2493 * Acquire a reference to the periph before we create the devfs 2494 * instances for it. We'll release this reference once the devfs 2495 * instances have been freed. 2496 */ 2497 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 2498 xpt_print(periph->path, "%s: lost periph during " 2499 "registration!\n", __func__); 2500 cam_periph_lock(periph); 2501 return (CAM_REQ_CMP_ERR); 2502 } 2503 2504 softc->devs.ctl_dev = make_dev(&sa_cdevsw, SAMINOR(SA_CTLDEV, 2505 SA_ATYPE_R), UID_ROOT, GID_OPERATOR, 2506 0660, "%s%d.ctl", periph->periph_name, periph->unit_number); 2507 sasetupdev(softc, softc->devs.ctl_dev); 2508 2509 softc->devs.r_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV, 2510 SA_ATYPE_R), UID_ROOT, GID_OPERATOR, 2511 0660, "%s%d", periph->periph_name, periph->unit_number); 2512 sasetupdev(softc, softc->devs.r_dev); 2513 2514 softc->devs.nr_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV, 2515 SA_ATYPE_NR), UID_ROOT, GID_OPERATOR, 2516 0660, "n%s%d", periph->periph_name, periph->unit_number); 2517 sasetupdev(softc, softc->devs.nr_dev); 2518 2519 softc->devs.er_dev = make_dev(&sa_cdevsw, SAMINOR(SA_NOT_CTLDEV, 2520 SA_ATYPE_ER), UID_ROOT, GID_OPERATOR, 2521 0660, "e%s%d", periph->periph_name, periph->unit_number); 2522 sasetupdev(softc, softc->devs.er_dev); 2523 2524 cam_periph_lock(periph); 2525 2526 softc->density_type_bits[0] = 0; 2527 softc->density_type_bits[1] = SRDS_MEDIA; 2528 softc->density_type_bits[2] = SRDS_MEDIUM_TYPE; 2529 softc->density_type_bits[3] = SRDS_MEDIUM_TYPE | SRDS_MEDIA; 2530 /* 2531 * Bump the peripheral refcount for the sysctl thread, in case we 2532 * get invalidated before the thread has a chance to run. 2533 */ 2534 cam_periph_acquire(periph); 2535 taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task); 2536 2537 /* 2538 * Add an async callback so that we get 2539 * notified if this device goes away. 2540 */ 2541 xpt_register_async(AC_LOST_DEVICE, saasync, periph, periph->path); 2542 2543 xpt_announce_periph(periph, NULL); 2544 xpt_announce_quirks(periph, softc->quirks, SA_QUIRK_BIT_STRING); 2545 2546 return (CAM_REQ_CMP); 2547 } 2548 2549 static void 2550 sastart(struct cam_periph *periph, union ccb *start_ccb) 2551 { 2552 struct sa_softc *softc; 2553 2554 softc = (struct sa_softc *)periph->softc; 2555 2556 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sastart\n")); 2557 2558 2559 switch (softc->state) { 2560 case SA_STATE_NORMAL: 2561 { 2562 /* Pull a buffer from the queue and get going on it */ 2563 struct bio *bp; 2564 2565 /* 2566 * See if there is a buf with work for us to do.. 2567 */ 2568 bp = bioq_first(&softc->bio_queue); 2569 if (bp == NULL) { 2570 xpt_release_ccb(start_ccb); 2571 } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) { 2572 struct bio *done_bp; 2573 again: 2574 softc->queue_count--; 2575 bioq_remove(&softc->bio_queue, bp); 2576 bp->bio_resid = bp->bio_bcount; 2577 done_bp = bp; 2578 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) { 2579 /* 2580 * We have two different behaviors for 2581 * writes when we hit either Early Warning 2582 * or the PEWZ (Programmable Early Warning 2583 * Zone). The default behavior is that 2584 * for all writes that are currently 2585 * queued after the write where we saw the 2586 * early warning, we will return the write 2587 * with the residual equal to the count. 2588 * i.e. tell the application that 0 bytes 2589 * were written. 2590 * 2591 * The alternate behavior, which is enabled 2592 * when eot_warn is set, is that in 2593 * addition to setting the residual equal 2594 * to the count, we will set the error 2595 * to ENOSPC. 2596 * 2597 * In either case, once queued writes are 2598 * cleared out, we clear the error flag 2599 * (see below) and the application is free to 2600 * attempt to write more. 2601 */ 2602 if (softc->eot_warn != 0) { 2603 bp->bio_flags |= BIO_ERROR; 2604 bp->bio_error = ENOSPC; 2605 } else 2606 bp->bio_error = 0; 2607 } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) { 2608 /* 2609 * This can only happen if we're reading 2610 * in fixed length mode. In this case, 2611 * we dump the rest of the list the 2612 * same way. 2613 */ 2614 bp->bio_error = 0; 2615 if (bioq_first(&softc->bio_queue) != NULL) { 2616 biodone(done_bp); 2617 goto again; 2618 } 2619 } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) { 2620 bp->bio_error = EIO; 2621 bp->bio_flags |= BIO_ERROR; 2622 } 2623 bp = bioq_first(&softc->bio_queue); 2624 /* 2625 * Only if we have no other buffers queued up 2626 * do we clear the pending error flag. 2627 */ 2628 if (bp == NULL) 2629 softc->flags &= ~SA_FLAG_ERR_PENDING; 2630 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 2631 ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, " 2632 "%d more buffers queued up\n", 2633 (softc->flags & SA_FLAG_ERR_PENDING), 2634 (bp != NULL)? "not " : " ", softc->queue_count)); 2635 xpt_release_ccb(start_ccb); 2636 biodone(done_bp); 2637 } else { 2638 u_int32_t length; 2639 2640 bioq_remove(&softc->bio_queue, bp); 2641 softc->queue_count--; 2642 2643 length = bp->bio_bcount; 2644 2645 if ((softc->flags & SA_FLAG_FIXED) != 0) { 2646 if (softc->blk_shift != 0) { 2647 length = length >> softc->blk_shift; 2648 } else if (softc->media_blksize != 0) { 2649 length = length / softc->media_blksize; 2650 } else { 2651 bp->bio_error = EIO; 2652 xpt_print(periph->path, "zero blocksize" 2653 " for FIXED length writes?\n"); 2654 biodone(bp); 2655 break; 2656 } 2657 #if 0 2658 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, 2659 ("issuing a %d fixed record %s\n", 2660 length, (bp->bio_cmd == BIO_READ)? "read" : 2661 "write")); 2662 #endif 2663 } else { 2664 #if 0 2665 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, 2666 ("issuing a %d variable byte %s\n", 2667 length, (bp->bio_cmd == BIO_READ)? "read" : 2668 "write")); 2669 #endif 2670 } 2671 devstat_start_transaction_bio(softc->device_stats, bp); 2672 /* 2673 * Some people have theorized that we should 2674 * suppress illegal length indication if we are 2675 * running in variable block mode so that we don't 2676 * have to request sense every time our requested 2677 * block size is larger than the written block. 2678 * The residual information from the ccb allows 2679 * us to identify this situation anyway. The only 2680 * problem with this is that we will not get 2681 * information about blocks that are larger than 2682 * our read buffer unless we set the block size 2683 * in the mode page to something other than 0. 2684 * 2685 * I believe that this is a non-issue. If user apps 2686 * don't adjust their read size to match our record 2687 * size, that's just life. Anyway, the typical usage 2688 * would be to issue, e.g., 64KB reads and occasionally 2689 * have to do deal with 512 byte or 1KB intermediate 2690 * records. 2691 * 2692 * That said, though, we now support setting the 2693 * SILI bit on reads, and we set the blocksize to 4 2694 * bytes when we do that. This gives us 2695 * compatibility with software that wants this, 2696 * although the only real difference between that 2697 * and not setting the SILI bit on reads is that we 2698 * won't get a check condition on reads where our 2699 * request size is larger than the block on tape. 2700 * That probably only makes a real difference in 2701 * non-packetized SCSI, where you have to go back 2702 * to the drive to request sense and thus incur 2703 * more latency. 2704 */ 2705 softc->dsreg = (bp->bio_cmd == BIO_READ)? 2706 MTIO_DSREG_RD : MTIO_DSREG_WR; 2707 scsi_sa_read_write(&start_ccb->csio, 0, sadone, 2708 MSG_SIMPLE_Q_TAG, (bp->bio_cmd == BIO_READ ? 2709 SCSI_RW_READ : SCSI_RW_WRITE) | 2710 ((bp->bio_flags & BIO_UNMAPPED) != 0 ? 2711 SCSI_RW_BIO : 0), softc->sili, 2712 (softc->flags & SA_FLAG_FIXED) != 0, length, 2713 (bp->bio_flags & BIO_UNMAPPED) != 0 ? (void *)bp : 2714 bp->bio_data, bp->bio_bcount, SSD_FULL_SIZE, 2715 IO_TIMEOUT); 2716 start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED; 2717 start_ccb->ccb_h.ccb_bp = bp; 2718 bp = bioq_first(&softc->bio_queue); 2719 xpt_action(start_ccb); 2720 } 2721 2722 if (bp != NULL) { 2723 /* Have more work to do, so ensure we stay scheduled */ 2724 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 2725 } 2726 break; 2727 } 2728 case SA_STATE_ABNORMAL: 2729 default: 2730 panic("state 0x%x in sastart", softc->state); 2731 break; 2732 } 2733 } 2734 2735 2736 static void 2737 sadone(struct cam_periph *periph, union ccb *done_ccb) 2738 { 2739 struct sa_softc *softc; 2740 struct ccb_scsiio *csio; 2741 struct bio *bp; 2742 int error; 2743 2744 softc = (struct sa_softc *)periph->softc; 2745 csio = &done_ccb->csio; 2746 2747 softc->dsreg = MTIO_DSREG_REST; 2748 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 2749 error = 0; 2750 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2751 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) { 2752 /* 2753 * A retry was scheduled, so just return. 2754 */ 2755 return; 2756 } 2757 } 2758 2759 if (error == EIO) { 2760 2761 /* 2762 * Catastrophic error. Mark the tape as frozen 2763 * (we no longer know tape position). 2764 * 2765 * Return all queued I/O with EIO, and unfreeze 2766 * our queue so that future transactions that 2767 * attempt to fix this problem can get to the 2768 * device. 2769 * 2770 */ 2771 2772 softc->flags |= SA_FLAG_TAPE_FROZEN; 2773 bioq_flush(&softc->bio_queue, NULL, EIO); 2774 } 2775 if (error != 0) { 2776 bp->bio_resid = bp->bio_bcount; 2777 bp->bio_error = error; 2778 bp->bio_flags |= BIO_ERROR; 2779 /* 2780 * In the error case, position is updated in saerror. 2781 */ 2782 } else { 2783 bp->bio_resid = csio->resid; 2784 bp->bio_error = 0; 2785 if (csio->resid != 0) { 2786 bp->bio_flags |= BIO_ERROR; 2787 } 2788 if (bp->bio_cmd == BIO_WRITE) { 2789 softc->flags |= SA_FLAG_TAPE_WRITTEN; 2790 softc->filemarks = 0; 2791 } 2792 if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) && 2793 (softc->blkno != (daddr_t) -1)) { 2794 if ((softc->flags & SA_FLAG_FIXED) != 0) { 2795 u_int32_t l; 2796 if (softc->blk_shift != 0) { 2797 l = bp->bio_bcount >> 2798 softc->blk_shift; 2799 } else { 2800 l = bp->bio_bcount / 2801 softc->media_blksize; 2802 } 2803 softc->blkno += (daddr_t) l; 2804 } else { 2805 softc->blkno++; 2806 } 2807 } 2808 } 2809 /* 2810 * If we had an error (immediate or pending), 2811 * release the device queue now. 2812 */ 2813 if (error || (softc->flags & SA_FLAG_ERR_PENDING)) 2814 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0); 2815 if (error || bp->bio_resid) { 2816 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 2817 ("error %d resid %ld count %ld\n", error, 2818 bp->bio_resid, bp->bio_bcount)); 2819 } 2820 biofinish(bp, softc->device_stats, 0); 2821 xpt_release_ccb(done_ccb); 2822 } 2823 2824 /* 2825 * Mount the tape (make sure it's ready for I/O). 2826 */ 2827 static int 2828 samount(struct cam_periph *periph, int oflags, struct cdev *dev) 2829 { 2830 struct sa_softc *softc; 2831 union ccb *ccb; 2832 int error; 2833 2834 /* 2835 * oflags can be checked for 'kind' of open (read-only check) - later 2836 * dev can be checked for a control-mode or compression open - later 2837 */ 2838 UNUSED_PARAMETER(oflags); 2839 UNUSED_PARAMETER(dev); 2840 2841 2842 softc = (struct sa_softc *)periph->softc; 2843 2844 /* 2845 * This should determine if something has happend since the last 2846 * open/mount that would invalidate the mount. We do *not* want 2847 * to retry this command- we just want the status. But we only 2848 * do this if we're mounted already- if we're not mounted, 2849 * we don't care about the unit read state and can instead use 2850 * this opportunity to attempt to reserve the tape unit. 2851 */ 2852 2853 if (softc->flags & SA_FLAG_TAPE_MOUNTED) { 2854 ccb = cam_periph_getccb(periph, 1); 2855 scsi_test_unit_ready(&ccb->csio, 0, sadone, 2856 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 2857 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2858 softc->device_stats); 2859 if (error == ENXIO) { 2860 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 2861 scsi_test_unit_ready(&ccb->csio, 0, sadone, 2862 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 2863 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2864 softc->device_stats); 2865 } else if (error) { 2866 /* 2867 * We don't need to freeze the tape because we 2868 * will now attempt to rewind/load it. 2869 */ 2870 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 2871 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 2872 xpt_print(periph->path, 2873 "error %d on TUR in samount\n", error); 2874 } 2875 } 2876 } else { 2877 error = sareservereleaseunit(periph, TRUE); 2878 if (error) { 2879 return (error); 2880 } 2881 ccb = cam_periph_getccb(periph, 1); 2882 scsi_test_unit_ready(&ccb->csio, 0, sadone, 2883 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 2884 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2885 softc->device_stats); 2886 } 2887 2888 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { 2889 struct scsi_read_block_limits_data *rblim = NULL; 2890 int comp_enabled, comp_supported; 2891 u_int8_t write_protect, guessing = 0; 2892 2893 /* 2894 * Clear out old state. 2895 */ 2896 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN| 2897 SA_FLAG_ERR_PENDING|SA_FLAG_COMPRESSION); 2898 softc->filemarks = 0; 2899 2900 /* 2901 * *Very* first off, make sure we're loaded to BOT. 2902 */ 2903 scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, 2904 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT); 2905 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2906 softc->device_stats); 2907 2908 /* 2909 * In case this doesn't work, do a REWIND instead 2910 */ 2911 if (error) { 2912 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, 2913 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); 2914 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2915 softc->device_stats); 2916 } 2917 if (error) { 2918 xpt_release_ccb(ccb); 2919 goto exit; 2920 } 2921 2922 /* 2923 * Do a dummy test read to force access to the 2924 * media so that the drive will really know what's 2925 * there. We actually don't really care what the 2926 * blocksize on tape is and don't expect to really 2927 * read a full record. 2928 */ 2929 rblim = (struct scsi_read_block_limits_data *) 2930 malloc(8192, M_SCSISA, M_NOWAIT); 2931 if (rblim == NULL) { 2932 xpt_print(periph->path, "no memory for test read\n"); 2933 xpt_release_ccb(ccb); 2934 error = ENOMEM; 2935 goto exit; 2936 } 2937 2938 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) { 2939 scsi_sa_read_write(&ccb->csio, 0, sadone, 2940 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192, 2941 (void *) rblim, 8192, SSD_FULL_SIZE, 2942 IO_TIMEOUT); 2943 (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2944 softc->device_stats); 2945 scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, 2946 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); 2947 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO, 2948 SF_NO_PRINT | SF_RETRY_UA, 2949 softc->device_stats); 2950 if (error) { 2951 xpt_print(periph->path, 2952 "unable to rewind after test read\n"); 2953 xpt_release_ccb(ccb); 2954 goto exit; 2955 } 2956 } 2957 2958 /* 2959 * Next off, determine block limits. 2960 */ 2961 scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, 2962 rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 2963 2964 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO, 2965 SF_NO_PRINT | SF_RETRY_UA, softc->device_stats); 2966 2967 xpt_release_ccb(ccb); 2968 2969 if (error != 0) { 2970 /* 2971 * If it's less than SCSI-2, READ BLOCK LIMITS is not 2972 * a MANDATORY command. Anyway- it doesn't matter- 2973 * we can proceed anyway. 2974 */ 2975 softc->blk_gran = 0; 2976 softc->max_blk = ~0; 2977 softc->min_blk = 0; 2978 } else { 2979 if (softc->scsi_rev >= SCSI_REV_SPC) { 2980 softc->blk_gran = RBL_GRAN(rblim); 2981 } else { 2982 softc->blk_gran = 0; 2983 } 2984 /* 2985 * We take max_blk == min_blk to mean a default to 2986 * fixed mode- but note that whatever we get out of 2987 * sagetparams below will actually determine whether 2988 * we are actually *in* fixed mode. 2989 */ 2990 softc->max_blk = scsi_3btoul(rblim->maximum); 2991 softc->min_blk = scsi_2btoul(rblim->minimum); 2992 2993 2994 } 2995 /* 2996 * Next, perform a mode sense to determine 2997 * current density, blocksize, compression etc. 2998 */ 2999 error = sagetparams(periph, SA_PARAM_ALL, 3000 &softc->media_blksize, 3001 &softc->media_density, 3002 &softc->media_numblks, 3003 &softc->buffer_mode, &write_protect, 3004 &softc->speed, &comp_supported, 3005 &comp_enabled, &softc->comp_algorithm, 3006 NULL, NULL, 0, 0); 3007 3008 if (error != 0) { 3009 /* 3010 * We could work a little harder here. We could 3011 * adjust our attempts to get information. It 3012 * might be an ancient tape drive. If someone 3013 * nudges us, we'll do that. 3014 */ 3015 goto exit; 3016 } 3017 3018 /* 3019 * If no quirk has determined that this is a device that is 3020 * preferred to be in fixed or variable mode, now is the time 3021 * to find out. 3022 */ 3023 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) { 3024 guessing = 1; 3025 /* 3026 * This could be expensive to find out. Luckily we 3027 * only need to do this once. If we start out in 3028 * 'default' mode, try and set ourselves to one 3029 * of the densities that would determine a wad 3030 * of other stuff. Go from highest to lowest. 3031 */ 3032 if (softc->media_density == SCSI_DEFAULT_DENSITY) { 3033 int i; 3034 static u_int8_t ctry[] = { 3035 SCSI_DENSITY_HALFINCH_PE, 3036 SCSI_DENSITY_HALFINCH_6250C, 3037 SCSI_DENSITY_HALFINCH_6250, 3038 SCSI_DENSITY_HALFINCH_1600, 3039 SCSI_DENSITY_HALFINCH_800, 3040 SCSI_DENSITY_QIC_4GB, 3041 SCSI_DENSITY_QIC_2GB, 3042 SCSI_DENSITY_QIC_525_320, 3043 SCSI_DENSITY_QIC_150, 3044 SCSI_DENSITY_QIC_120, 3045 SCSI_DENSITY_QIC_24, 3046 SCSI_DENSITY_QIC_11_9TRK, 3047 SCSI_DENSITY_QIC_11_4TRK, 3048 SCSI_DENSITY_QIC_1320, 3049 SCSI_DENSITY_QIC_3080, 3050 0 3051 }; 3052 for (i = 0; ctry[i]; i++) { 3053 error = sasetparams(periph, 3054 SA_PARAM_DENSITY, 0, ctry[i], 3055 0, SF_NO_PRINT); 3056 if (error == 0) { 3057 softc->media_density = ctry[i]; 3058 break; 3059 } 3060 } 3061 } 3062 switch (softc->media_density) { 3063 case SCSI_DENSITY_QIC_11_4TRK: 3064 case SCSI_DENSITY_QIC_11_9TRK: 3065 case SCSI_DENSITY_QIC_24: 3066 case SCSI_DENSITY_QIC_120: 3067 case SCSI_DENSITY_QIC_150: 3068 case SCSI_DENSITY_QIC_525_320: 3069 case SCSI_DENSITY_QIC_1320: 3070 case SCSI_DENSITY_QIC_3080: 3071 softc->quirks &= ~SA_QUIRK_2FM; 3072 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; 3073 softc->last_media_blksize = 512; 3074 break; 3075 case SCSI_DENSITY_QIC_4GB: 3076 case SCSI_DENSITY_QIC_2GB: 3077 softc->quirks &= ~SA_QUIRK_2FM; 3078 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; 3079 softc->last_media_blksize = 1024; 3080 break; 3081 default: 3082 softc->last_media_blksize = 3083 softc->media_blksize; 3084 softc->quirks |= SA_QUIRK_VARIABLE; 3085 break; 3086 } 3087 } 3088 3089 /* 3090 * If no quirk has determined that this is a device that needs 3091 * to have 2 Filemarks at EOD, now is the time to find out. 3092 */ 3093 3094 if ((softc->quirks & SA_QUIRK_2FM) == 0) { 3095 switch (softc->media_density) { 3096 case SCSI_DENSITY_HALFINCH_800: 3097 case SCSI_DENSITY_HALFINCH_1600: 3098 case SCSI_DENSITY_HALFINCH_6250: 3099 case SCSI_DENSITY_HALFINCH_6250C: 3100 case SCSI_DENSITY_HALFINCH_PE: 3101 softc->quirks &= ~SA_QUIRK_1FM; 3102 softc->quirks |= SA_QUIRK_2FM; 3103 break; 3104 default: 3105 break; 3106 } 3107 } 3108 3109 /* 3110 * Now validate that some info we got makes sense. 3111 */ 3112 if ((softc->max_blk < softc->media_blksize) || 3113 (softc->min_blk > softc->media_blksize && 3114 softc->media_blksize)) { 3115 xpt_print(periph->path, 3116 "BLOCK LIMITS (%d..%d) could not match current " 3117 "block settings (%d)- adjusting\n", softc->min_blk, 3118 softc->max_blk, softc->media_blksize); 3119 softc->max_blk = softc->min_blk = 3120 softc->media_blksize; 3121 } 3122 3123 /* 3124 * Now put ourselves into the right frame of mind based 3125 * upon quirks... 3126 */ 3127 tryagain: 3128 /* 3129 * If we want to be in FIXED mode and our current blocksize 3130 * is not equal to our last blocksize (if nonzero), try and 3131 * set ourselves to this last blocksize (as the 'preferred' 3132 * block size). The initial quirkmatch at registry sets the 3133 * initial 'last' blocksize. If, for whatever reason, this 3134 * 'last' blocksize is zero, set the blocksize to 512, 3135 * or min_blk if that's larger. 3136 */ 3137 if ((softc->quirks & SA_QUIRK_FIXED) && 3138 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 && 3139 (softc->media_blksize != softc->last_media_blksize)) { 3140 softc->media_blksize = softc->last_media_blksize; 3141 if (softc->media_blksize == 0) { 3142 softc->media_blksize = 512; 3143 if (softc->media_blksize < softc->min_blk) { 3144 softc->media_blksize = softc->min_blk; 3145 } 3146 } 3147 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, 3148 softc->media_blksize, 0, 0, SF_NO_PRINT); 3149 if (error) { 3150 xpt_print(periph->path, 3151 "unable to set fixed blocksize to %d\n", 3152 softc->media_blksize); 3153 goto exit; 3154 } 3155 } 3156 3157 if ((softc->quirks & SA_QUIRK_VARIABLE) && 3158 (softc->media_blksize != 0)) { 3159 softc->last_media_blksize = softc->media_blksize; 3160 softc->media_blksize = 0; 3161 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, 3162 0, 0, 0, SF_NO_PRINT); 3163 if (error) { 3164 /* 3165 * If this fails and we were guessing, just 3166 * assume that we got it wrong and go try 3167 * fixed block mode. Don't even check against 3168 * density code at this point. 3169 */ 3170 if (guessing) { 3171 softc->quirks &= ~SA_QUIRK_VARIABLE; 3172 softc->quirks |= SA_QUIRK_FIXED; 3173 if (softc->last_media_blksize == 0) 3174 softc->last_media_blksize = 512; 3175 goto tryagain; 3176 } 3177 xpt_print(periph->path, 3178 "unable to set variable blocksize\n"); 3179 goto exit; 3180 } 3181 } 3182 3183 /* 3184 * Now that we have the current block size, 3185 * set up some parameters for sastart's usage. 3186 */ 3187 if (softc->media_blksize) { 3188 softc->flags |= SA_FLAG_FIXED; 3189 if (powerof2(softc->media_blksize)) { 3190 softc->blk_shift = 3191 ffs(softc->media_blksize) - 1; 3192 softc->blk_mask = softc->media_blksize - 1; 3193 } else { 3194 softc->blk_mask = ~0; 3195 softc->blk_shift = 0; 3196 } 3197 } else { 3198 /* 3199 * The SCSI-3 spec allows 0 to mean "unspecified". 3200 * The SCSI-1 spec allows 0 to mean 'infinite'. 3201 * 3202 * Either works here. 3203 */ 3204 if (softc->max_blk == 0) { 3205 softc->max_blk = ~0; 3206 } 3207 softc->blk_shift = 0; 3208 if (softc->blk_gran != 0) { 3209 softc->blk_mask = softc->blk_gran - 1; 3210 } else { 3211 softc->blk_mask = 0; 3212 } 3213 } 3214 3215 if (write_protect) 3216 softc->flags |= SA_FLAG_TAPE_WP; 3217 3218 if (comp_supported) { 3219 if (softc->saved_comp_algorithm == 0) 3220 softc->saved_comp_algorithm = 3221 softc->comp_algorithm; 3222 softc->flags |= SA_FLAG_COMP_SUPP; 3223 if (comp_enabled) 3224 softc->flags |= SA_FLAG_COMP_ENABLED; 3225 } else 3226 softc->flags |= SA_FLAG_COMP_UNSUPP; 3227 3228 if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) && 3229 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) { 3230 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0, 3231 0, 0, SF_NO_PRINT); 3232 if (error == 0) { 3233 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF; 3234 } else { 3235 xpt_print(periph->path, 3236 "unable to set buffered mode\n"); 3237 } 3238 error = 0; /* not an error */ 3239 } 3240 3241 3242 if (error == 0) { 3243 softc->flags |= SA_FLAG_TAPE_MOUNTED; 3244 } 3245 exit: 3246 if (rblim != NULL) 3247 free(rblim, M_SCSISA); 3248 3249 if (error != 0) { 3250 softc->dsreg = MTIO_DSREG_NIL; 3251 } else { 3252 softc->fileno = softc->blkno = 0; 3253 softc->rep_fileno = softc->rep_blkno = -1; 3254 softc->partition = 0; 3255 softc->dsreg = MTIO_DSREG_REST; 3256 } 3257 #ifdef SA_1FM_AT_EOD 3258 if ((softc->quirks & SA_QUIRK_2FM) == 0) 3259 softc->quirks |= SA_QUIRK_1FM; 3260 #else 3261 if ((softc->quirks & SA_QUIRK_1FM) == 0) 3262 softc->quirks |= SA_QUIRK_2FM; 3263 #endif 3264 } else 3265 xpt_release_ccb(ccb); 3266 3267 /* 3268 * If we return an error, we're not mounted any more, 3269 * so release any device reservation. 3270 */ 3271 if (error != 0) { 3272 (void) sareservereleaseunit(periph, FALSE); 3273 } else { 3274 /* 3275 * Clear I/O residual. 3276 */ 3277 softc->last_io_resid = 0; 3278 softc->last_ctl_resid = 0; 3279 } 3280 return (error); 3281 } 3282 3283 /* 3284 * How many filemarks do we need to write if we were to terminate the 3285 * tape session right now? Note that this can be a negative number 3286 */ 3287 3288 static int 3289 samarkswanted(struct cam_periph *periph) 3290 { 3291 int markswanted; 3292 struct sa_softc *softc; 3293 3294 softc = (struct sa_softc *)periph->softc; 3295 markswanted = 0; 3296 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) { 3297 markswanted++; 3298 if (softc->quirks & SA_QUIRK_2FM) 3299 markswanted++; 3300 } 3301 markswanted -= softc->filemarks; 3302 return (markswanted); 3303 } 3304 3305 static int 3306 sacheckeod(struct cam_periph *periph) 3307 { 3308 int error; 3309 int markswanted; 3310 3311 markswanted = samarkswanted(periph); 3312 3313 if (markswanted > 0) { 3314 error = sawritefilemarks(periph, markswanted, FALSE, FALSE); 3315 } else { 3316 error = 0; 3317 } 3318 return (error); 3319 } 3320 3321 static int 3322 saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs) 3323 { 3324 static const char *toobig = 3325 "%d-byte tape record bigger than supplied buffer\n"; 3326 struct cam_periph *periph; 3327 struct sa_softc *softc; 3328 struct ccb_scsiio *csio; 3329 struct scsi_sense_data *sense; 3330 uint64_t resid = 0; 3331 int64_t info = 0; 3332 cam_status status; 3333 int error_code, sense_key, asc, ascq, error, aqvalid, stream_valid; 3334 int sense_len; 3335 uint8_t stream_bits; 3336 3337 periph = xpt_path_periph(ccb->ccb_h.path); 3338 softc = (struct sa_softc *)periph->softc; 3339 csio = &ccb->csio; 3340 sense = &csio->sense_data; 3341 sense_len = csio->sense_len - csio->sense_resid; 3342 scsi_extract_sense_len(sense, sense_len, &error_code, &sense_key, 3343 &asc, &ascq, /*show_errors*/ 1); 3344 if (asc != -1 && ascq != -1) 3345 aqvalid = 1; 3346 else 3347 aqvalid = 0; 3348 if (scsi_get_stream_info(sense, sense_len, NULL, &stream_bits) == 0) 3349 stream_valid = 1; 3350 else 3351 stream_valid = 0; 3352 error = 0; 3353 3354 status = csio->ccb_h.status & CAM_STATUS_MASK; 3355 3356 /* 3357 * Calculate/latch up, any residuals... We do this in a funny 2-step 3358 * so we can print stuff here if we have CAM_DEBUG enabled for this 3359 * unit. 3360 */ 3361 if (status == CAM_SCSI_STATUS_ERROR) { 3362 if (scsi_get_sense_info(sense, sense_len, SSD_DESC_INFO, &resid, 3363 &info) == 0) { 3364 if ((softc->flags & SA_FLAG_FIXED) != 0) 3365 resid *= softc->media_blksize; 3366 } else { 3367 resid = csio->dxfer_len; 3368 info = resid; 3369 if ((softc->flags & SA_FLAG_FIXED) != 0) { 3370 if (softc->media_blksize) 3371 info /= softc->media_blksize; 3372 } 3373 } 3374 if (csio->cdb_io.cdb_bytes[0] == SA_READ || 3375 csio->cdb_io.cdb_bytes[0] == SA_WRITE) { 3376 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense, 3377 sizeof (struct scsi_sense_data)); 3378 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb, 3379 (int) csio->cdb_len); 3380 softc->last_io_resid = resid; 3381 softc->last_resid_was_io = 1; 3382 } else { 3383 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense, 3384 sizeof (struct scsi_sense_data)); 3385 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb, 3386 (int) csio->cdb_len); 3387 softc->last_ctl_resid = resid; 3388 softc->last_resid_was_io = 0; 3389 } 3390 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x " 3391 "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %jd " 3392 "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff, 3393 sense_key, asc, ascq, status, 3394 (stream_valid) ? stream_bits : 0, (intmax_t)resid, 3395 csio->dxfer_len)); 3396 } else { 3397 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 3398 ("Cam Status 0x%x\n", status)); 3399 } 3400 3401 switch (status) { 3402 case CAM_REQ_CMP: 3403 return (0); 3404 case CAM_SCSI_STATUS_ERROR: 3405 /* 3406 * If a read/write command, we handle it here. 3407 */ 3408 if (csio->cdb_io.cdb_bytes[0] == SA_READ || 3409 csio->cdb_io.cdb_bytes[0] == SA_WRITE) { 3410 break; 3411 } 3412 /* 3413 * If this was just EOM/EOP, Filemark, Setmark or ILI detected 3414 * on a non read/write command, we assume it's not an error 3415 * and propagate the residule and return. 3416 */ 3417 if ((aqvalid && asc == 0 && ascq > 0 && ascq <= 5) || 3418 (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) { 3419 csio->resid = resid; 3420 QFRLS(ccb); 3421 return (0); 3422 } 3423 /* 3424 * Otherwise, we let the common code handle this. 3425 */ 3426 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb)); 3427 3428 /* 3429 * XXX: To Be Fixed 3430 * We cannot depend upon CAM honoring retry counts for these. 3431 */ 3432 case CAM_SCSI_BUS_RESET: 3433 case CAM_BDR_SENT: 3434 if (ccb->ccb_h.retry_count <= 0) { 3435 return (EIO); 3436 } 3437 /* FALLTHROUGH */ 3438 default: 3439 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb)); 3440 } 3441 3442 /* 3443 * Handle filemark, end of tape, mismatched record sizes.... 3444 * From this point out, we're only handling read/write cases. 3445 * Handle writes && reads differently. 3446 */ 3447 3448 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) { 3449 if (sense_key == SSD_KEY_VOLUME_OVERFLOW) { 3450 csio->resid = resid; 3451 error = ENOSPC; 3452 } else if ((stream_valid != 0) && (stream_bits & SSD_EOM)) { 3453 softc->flags |= SA_FLAG_EOM_PENDING; 3454 /* 3455 * Grotesque as it seems, the few times 3456 * I've actually seen a non-zero resid, 3457 * the tape drive actually lied and had 3458 * written all the data!. 3459 */ 3460 csio->resid = 0; 3461 } 3462 } else { 3463 csio->resid = resid; 3464 if (sense_key == SSD_KEY_BLANK_CHECK) { 3465 if (softc->quirks & SA_QUIRK_1FM) { 3466 error = 0; 3467 softc->flags |= SA_FLAG_EOM_PENDING; 3468 } else { 3469 error = EIO; 3470 } 3471 } else if ((stream_valid != 0) && (stream_bits & SSD_FILEMARK)){ 3472 if (softc->flags & SA_FLAG_FIXED) { 3473 error = -1; 3474 softc->flags |= SA_FLAG_EOF_PENDING; 3475 } 3476 /* 3477 * Unconditionally, if we detected a filemark on a read, 3478 * mark that we've run moved a file ahead. 3479 */ 3480 if (softc->fileno != (daddr_t) -1) { 3481 softc->fileno++; 3482 softc->blkno = 0; 3483 csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED; 3484 } 3485 } 3486 } 3487 3488 /* 3489 * Incorrect Length usually applies to read, but can apply to writes. 3490 */ 3491 if (error == 0 && (stream_valid != 0) && (stream_bits & SSD_ILI)) { 3492 if (info < 0) { 3493 xpt_print(csio->ccb_h.path, toobig, 3494 csio->dxfer_len - info); 3495 csio->resid = csio->dxfer_len; 3496 error = EIO; 3497 } else { 3498 csio->resid = resid; 3499 if (softc->flags & SA_FLAG_FIXED) { 3500 softc->flags |= SA_FLAG_EIO_PENDING; 3501 } 3502 /* 3503 * Bump the block number if we hadn't seen a filemark. 3504 * Do this independent of errors (we've moved anyway). 3505 */ 3506 if ((stream_valid == 0) || 3507 (stream_bits & SSD_FILEMARK) == 0) { 3508 if (softc->blkno != (daddr_t) -1) { 3509 softc->blkno++; 3510 csio->ccb_h.ccb_pflags |= 3511 SA_POSITION_UPDATED; 3512 } 3513 } 3514 } 3515 } 3516 3517 if (error <= 0) { 3518 /* 3519 * Unfreeze the queue if frozen as we're not returning anything 3520 * to our waiters that would indicate an I/O error has occurred 3521 * (yet). 3522 */ 3523 QFRLS(ccb); 3524 error = 0; 3525 } 3526 return (error); 3527 } 3528 3529 static int 3530 sagetparams(struct cam_periph *periph, sa_params params_to_get, 3531 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks, 3532 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed, 3533 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm, 3534 sa_comp_t *tcs, struct scsi_control_data_prot_subpage *prot_page, 3535 int dp_size, int prot_changeable) 3536 { 3537 union ccb *ccb; 3538 void *mode_buffer; 3539 struct scsi_mode_header_6 *mode_hdr; 3540 struct scsi_mode_blk_desc *mode_blk; 3541 int mode_buffer_len; 3542 struct sa_softc *softc; 3543 u_int8_t cpage; 3544 int error; 3545 cam_status status; 3546 3547 softc = (struct sa_softc *)periph->softc; 3548 ccb = cam_periph_getccb(periph, 1); 3549 if (softc->quirks & SA_QUIRK_NO_CPAGE) 3550 cpage = SA_DEVICE_CONFIGURATION_PAGE; 3551 else 3552 cpage = SA_DATA_COMPRESSION_PAGE; 3553 3554 retry: 3555 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); 3556 3557 if (params_to_get & SA_PARAM_COMPRESSION) { 3558 if (softc->quirks & SA_QUIRK_NOCOMP) { 3559 *comp_supported = FALSE; 3560 params_to_get &= ~SA_PARAM_COMPRESSION; 3561 } else 3562 mode_buffer_len += sizeof (sa_comp_t); 3563 } 3564 3565 /* XXX Fix M_NOWAIT */ 3566 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO); 3567 if (mode_buffer == NULL) { 3568 xpt_release_ccb(ccb); 3569 return (ENOMEM); 3570 } 3571 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; 3572 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 3573 3574 /* it is safe to retry this */ 3575 scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, 3576 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ? 3577 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len, 3578 SSD_FULL_SIZE, SCSIOP_TIMEOUT); 3579 3580 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 3581 softc->device_stats); 3582 3583 status = ccb->ccb_h.status & CAM_STATUS_MASK; 3584 3585 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) { 3586 /* 3587 * Hmm. Let's see if we can try another page... 3588 * If we've already done that, give up on compression 3589 * for this device and remember this for the future 3590 * and attempt the request without asking for compression 3591 * info. 3592 */ 3593 if (cpage == SA_DATA_COMPRESSION_PAGE) { 3594 cpage = SA_DEVICE_CONFIGURATION_PAGE; 3595 goto retry; 3596 } 3597 softc->quirks |= SA_QUIRK_NOCOMP; 3598 free(mode_buffer, M_SCSISA); 3599 goto retry; 3600 } else if (status == CAM_SCSI_STATUS_ERROR) { 3601 /* Tell the user about the fatal error. */ 3602 scsi_sense_print(&ccb->csio); 3603 goto sagetparamsexit; 3604 } 3605 3606 /* 3607 * If the user only wants the compression information, and 3608 * the device doesn't send back the block descriptor, it's 3609 * no big deal. If the user wants more than just 3610 * compression, though, and the device doesn't pass back the 3611 * block descriptor, we need to send another mode sense to 3612 * get the block descriptor. 3613 */ 3614 if ((mode_hdr->blk_desc_len == 0) && 3615 (params_to_get & SA_PARAM_COMPRESSION) && 3616 (params_to_get & ~(SA_PARAM_COMPRESSION))) { 3617 3618 /* 3619 * Decrease the mode buffer length by the size of 3620 * the compression page, to make sure the data 3621 * there doesn't get overwritten. 3622 */ 3623 mode_buffer_len -= sizeof (sa_comp_t); 3624 3625 /* 3626 * Now move the compression page that we presumably 3627 * got back down the memory chunk a little bit so 3628 * it doesn't get spammed. 3629 */ 3630 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t)); 3631 bzero(&mode_hdr[0], sizeof (mode_hdr[0])); 3632 3633 /* 3634 * Now, we issue another mode sense and just ask 3635 * for the block descriptor, etc. 3636 */ 3637 3638 scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, 3639 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE, 3640 mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 3641 SCSIOP_TIMEOUT); 3642 3643 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 3644 softc->device_stats); 3645 3646 if (error != 0) 3647 goto sagetparamsexit; 3648 } 3649 3650 if (params_to_get & SA_PARAM_BLOCKSIZE) 3651 *blocksize = scsi_3btoul(mode_blk->blklen); 3652 3653 if (params_to_get & SA_PARAM_NUMBLOCKS) 3654 *numblocks = scsi_3btoul(mode_blk->nblocks); 3655 3656 if (params_to_get & SA_PARAM_BUFF_MODE) 3657 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK; 3658 3659 if (params_to_get & SA_PARAM_DENSITY) 3660 *density = mode_blk->density; 3661 3662 if (params_to_get & SA_PARAM_WP) 3663 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE; 3664 3665 if (params_to_get & SA_PARAM_SPEED) 3666 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK; 3667 3668 if (params_to_get & SA_PARAM_COMPRESSION) { 3669 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1]; 3670 if (cpage == SA_DATA_COMPRESSION_PAGE) { 3671 struct scsi_data_compression_page *cp = &ntcs->dcomp; 3672 *comp_supported = 3673 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE; 3674 *comp_enabled = 3675 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE; 3676 *comp_algorithm = scsi_4btoul(cp->comp_algorithm); 3677 } else { 3678 struct scsi_dev_conf_page *cp = &ntcs->dconf; 3679 /* 3680 * We don't really know whether this device supports 3681 * Data Compression if the algorithm field is 3682 * zero. Just say we do. 3683 */ 3684 *comp_supported = TRUE; 3685 *comp_enabled = 3686 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE; 3687 *comp_algorithm = cp->sel_comp_alg; 3688 } 3689 if (tcs != NULL) 3690 bcopy(ntcs, tcs, sizeof (sa_comp_t)); 3691 } 3692 3693 if ((params_to_get & SA_PARAM_DENSITY_EXT) 3694 && (softc->scsi_rev >= SCSI_REV_SPC)) { 3695 int i; 3696 3697 for (i = 0; i < SA_DENSITY_TYPES; i++) { 3698 scsi_report_density_support(&ccb->csio, 3699 /*retries*/ 1, 3700 /*cbfcnp*/ sadone, 3701 /*tag_action*/ MSG_SIMPLE_Q_TAG, 3702 /*media*/ softc->density_type_bits[i] & SRDS_MEDIA, 3703 /*medium_type*/ softc->density_type_bits[i] & 3704 SRDS_MEDIUM_TYPE, 3705 /*data_ptr*/ softc->density_info[i], 3706 /*length*/ sizeof(softc->density_info[i]), 3707 /*sense_len*/ SSD_FULL_SIZE, 3708 /*timeout*/ REP_DENSITY_TIMEOUT); 3709 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 3710 softc->device_stats); 3711 status = ccb->ccb_h.status & CAM_STATUS_MASK; 3712 3713 /* 3714 * Some tape drives won't support this command at 3715 * all, but hopefully we'll minimize that with the 3716 * check for SPC or greater support above. If they 3717 * don't support the default report (neither the 3718 * MEDIA or MEDIUM_TYPE bits set), then there is 3719 * really no point in continuing on to look for 3720 * other reports. 3721 */ 3722 if ((error != 0) 3723 || (status != CAM_REQ_CMP)) { 3724 error = 0; 3725 softc->density_info_valid[i] = 0; 3726 if (softc->density_type_bits[i] == 0) 3727 break; 3728 else 3729 continue; 3730 } 3731 softc->density_info_valid[i] = ccb->csio.dxfer_len - 3732 ccb->csio.resid; 3733 } 3734 } 3735 3736 /* 3737 * Get logical block protection parameters if the drive supports it. 3738 */ 3739 if ((params_to_get & SA_PARAM_LBP) 3740 && (softc->flags & SA_FLAG_PROTECT_SUPP)) { 3741 struct scsi_mode_header_10 *mode10_hdr; 3742 struct scsi_control_data_prot_subpage *dp_page; 3743 struct scsi_mode_sense_10 *cdb; 3744 struct sa_prot_state *prot; 3745 int dp_len, returned_len; 3746 3747 if (dp_size == 0) 3748 dp_size = sizeof(*dp_page); 3749 3750 dp_len = sizeof(*mode10_hdr) + dp_size; 3751 mode10_hdr = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO); 3752 if (mode10_hdr == NULL) { 3753 error = ENOMEM; 3754 goto sagetparamsexit; 3755 } 3756 3757 scsi_mode_sense_len(&ccb->csio, 3758 /*retries*/ 5, 3759 /*cbfcnp*/ sadone, 3760 /*tag_action*/ MSG_SIMPLE_Q_TAG, 3761 /*dbd*/ TRUE, 3762 /*page_code*/ (prot_changeable == 0) ? 3763 SMS_PAGE_CTRL_CURRENT : 3764 SMS_PAGE_CTRL_CHANGEABLE, 3765 /*page*/ SMS_CONTROL_MODE_PAGE, 3766 /*param_buf*/ (uint8_t *)mode10_hdr, 3767 /*param_len*/ dp_len, 3768 /*minimum_cmd_size*/ 10, 3769 /*sense_len*/ SSD_FULL_SIZE, 3770 /*timeout*/ SCSIOP_TIMEOUT); 3771 /* 3772 * XXX KDM we need to be able to set the subpage in the 3773 * fill function. 3774 */ 3775 cdb = (struct scsi_mode_sense_10 *)ccb->csio.cdb_io.cdb_bytes; 3776 cdb->subpage = SA_CTRL_DP_SUBPAGE_CODE; 3777 3778 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 3779 softc->device_stats); 3780 if (error != 0) { 3781 free(mode10_hdr, M_SCSISA); 3782 goto sagetparamsexit; 3783 } 3784 3785 status = ccb->ccb_h.status & CAM_STATUS_MASK; 3786 if (status != CAM_REQ_CMP) { 3787 error = EINVAL; 3788 free(mode10_hdr, M_SCSISA); 3789 goto sagetparamsexit; 3790 } 3791 3792 /* 3793 * The returned data length at least has to be long enough 3794 * for us to look at length in the mode page header. 3795 */ 3796 returned_len = ccb->csio.dxfer_len - ccb->csio.resid; 3797 if (returned_len < sizeof(mode10_hdr->data_length)) { 3798 error = EINVAL; 3799 free(mode10_hdr, M_SCSISA); 3800 goto sagetparamsexit; 3801 } 3802 3803 returned_len = min(returned_len, 3804 sizeof(mode10_hdr->data_length) + 3805 scsi_2btoul(mode10_hdr->data_length)); 3806 3807 dp_page = (struct scsi_control_data_prot_subpage *) 3808 &mode10_hdr[1]; 3809 3810 /* 3811 * We also have to have enough data to include the prot_bits 3812 * in the subpage. 3813 */ 3814 if (returned_len < (sizeof(*mode10_hdr) + 3815 __offsetof(struct scsi_control_data_prot_subpage, prot_bits) 3816 + sizeof(dp_page->prot_bits))) { 3817 error = EINVAL; 3818 free(mode10_hdr, M_SCSISA); 3819 goto sagetparamsexit; 3820 } 3821 3822 prot = &softc->prot_info.cur_prot_state; 3823 prot->prot_method = dp_page->prot_method; 3824 prot->pi_length = dp_page->pi_length & 3825 SA_CTRL_DP_PI_LENGTH_MASK; 3826 prot->lbp_w = (dp_page->prot_bits & SA_CTRL_DP_LBP_W) ? 1 :0; 3827 prot->lbp_r = (dp_page->prot_bits & SA_CTRL_DP_LBP_R) ? 1 :0; 3828 prot->rbdp = (dp_page->prot_bits & SA_CTRL_DP_RBDP) ? 1 :0; 3829 prot->initialized = 1; 3830 3831 if (prot_page != NULL) 3832 bcopy(dp_page, prot_page, min(sizeof(*prot_page), 3833 sizeof(*dp_page))); 3834 3835 free(mode10_hdr, M_SCSISA); 3836 } 3837 3838 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 3839 int idx; 3840 char *xyz = mode_buffer; 3841 xpt_print_path(periph->path); 3842 printf("Mode Sense Data="); 3843 for (idx = 0; idx < mode_buffer_len; idx++) 3844 printf(" 0x%02x", xyz[idx] & 0xff); 3845 printf("\n"); 3846 } 3847 3848 sagetparamsexit: 3849 3850 xpt_release_ccb(ccb); 3851 free(mode_buffer, M_SCSISA); 3852 return (error); 3853 } 3854 3855 /* 3856 * Set protection information to the pending protection information stored 3857 * in the softc. 3858 */ 3859 static int 3860 sasetprot(struct cam_periph *periph, struct sa_prot_state *new_prot) 3861 { 3862 struct sa_softc *softc; 3863 struct scsi_control_data_prot_subpage *dp_page, *dp_changeable; 3864 struct scsi_mode_header_10 *mode10_hdr, *mode10_changeable; 3865 union ccb *ccb; 3866 uint8_t current_speed; 3867 size_t dp_size, dp_page_length; 3868 int dp_len, buff_mode; 3869 int error; 3870 3871 softc = (struct sa_softc *)periph->softc; 3872 mode10_hdr = NULL; 3873 mode10_changeable = NULL; 3874 ccb = NULL; 3875 3876 /* 3877 * Start off with the size set to the actual length of the page 3878 * that we have defined. 3879 */ 3880 dp_size = sizeof(*dp_changeable); 3881 dp_page_length = dp_size - 3882 __offsetof(struct scsi_control_data_prot_subpage, prot_method); 3883 3884 retry_length: 3885 3886 dp_len = sizeof(*mode10_changeable) + dp_size; 3887 mode10_changeable = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO); 3888 if (mode10_changeable == NULL) { 3889 error = ENOMEM; 3890 goto bailout; 3891 } 3892 3893 dp_changeable = 3894 (struct scsi_control_data_prot_subpage *)&mode10_changeable[1]; 3895 3896 /* 3897 * First get the data protection page changeable parameters mask. 3898 * We need to know which parameters the drive supports changing. 3899 * We also need to know what the drive claims that its page length 3900 * is. The reason is that IBM drives in particular are very picky 3901 * about the page length. They want it (the length set in the 3902 * page structure itself) to be 28 bytes, and they want the 3903 * parameter list length specified in the mode select header to be 3904 * 40 bytes. So, to work with IBM drives as well as any other tape 3905 * drive, find out what the drive claims the page length is, and 3906 * make sure that we match that. 3907 */ 3908 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP, 3909 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL, 3910 NULL, NULL, dp_changeable, dp_size, /*prot_changeable*/ 1); 3911 if (error != 0) 3912 goto bailout; 3913 3914 if (scsi_2btoul(dp_changeable->length) > dp_page_length) { 3915 dp_page_length = scsi_2btoul(dp_changeable->length); 3916 dp_size = dp_page_length + 3917 __offsetof(struct scsi_control_data_prot_subpage, 3918 prot_method); 3919 free(mode10_changeable, M_SCSISA); 3920 mode10_changeable = NULL; 3921 goto retry_length; 3922 } 3923 3924 mode10_hdr = malloc(dp_len, M_SCSISA, M_NOWAIT | M_ZERO); 3925 if (mode10_hdr == NULL) { 3926 error = ENOMEM; 3927 goto bailout; 3928 } 3929 3930 dp_page = (struct scsi_control_data_prot_subpage *)&mode10_hdr[1]; 3931 3932 /* 3933 * Now grab the actual current settings in the page. 3934 */ 3935 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP, 3936 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL, 3937 NULL, NULL, dp_page, dp_size, /*prot_changeable*/ 0); 3938 if (error != 0) 3939 goto bailout; 3940 3941 /* These two fields need to be 0 for MODE SELECT */ 3942 scsi_ulto2b(0, mode10_hdr->data_length); 3943 mode10_hdr->medium_type = 0; 3944 /* We are not including a block descriptor */ 3945 scsi_ulto2b(0, mode10_hdr->blk_desc_len); 3946 3947 mode10_hdr->dev_spec = current_speed; 3948 /* if set, set single-initiator buffering mode */ 3949 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) { 3950 mode10_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF; 3951 } 3952 3953 /* 3954 * For each field, make sure that the drive allows changing it 3955 * before bringing in the user's setting. 3956 */ 3957 if (dp_changeable->prot_method != 0) 3958 dp_page->prot_method = new_prot->prot_method; 3959 3960 if (dp_changeable->pi_length & SA_CTRL_DP_PI_LENGTH_MASK) { 3961 dp_page->pi_length &= ~SA_CTRL_DP_PI_LENGTH_MASK; 3962 dp_page->pi_length |= (new_prot->pi_length & 3963 SA_CTRL_DP_PI_LENGTH_MASK); 3964 } 3965 if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_W) { 3966 if (new_prot->lbp_w) 3967 dp_page->prot_bits |= SA_CTRL_DP_LBP_W; 3968 else 3969 dp_page->prot_bits &= ~SA_CTRL_DP_LBP_W; 3970 } 3971 3972 if (dp_changeable->prot_bits & SA_CTRL_DP_LBP_R) { 3973 if (new_prot->lbp_r) 3974 dp_page->prot_bits |= SA_CTRL_DP_LBP_R; 3975 else 3976 dp_page->prot_bits &= ~SA_CTRL_DP_LBP_R; 3977 } 3978 3979 if (dp_changeable->prot_bits & SA_CTRL_DP_RBDP) { 3980 if (new_prot->rbdp) 3981 dp_page->prot_bits |= SA_CTRL_DP_RBDP; 3982 else 3983 dp_page->prot_bits &= ~SA_CTRL_DP_RBDP; 3984 } 3985 3986 ccb = cam_periph_getccb(periph, 1); 3987 3988 scsi_mode_select_len(&ccb->csio, 3989 /*retries*/ 5, 3990 /*cbfcnp*/ sadone, 3991 /*tag_action*/ MSG_SIMPLE_Q_TAG, 3992 /*scsi_page_fmt*/ TRUE, 3993 /*save_pages*/ FALSE, 3994 /*param_buf*/ (uint8_t *)mode10_hdr, 3995 /*param_len*/ dp_len, 3996 /*minimum_cmd_size*/ 10, 3997 /*sense_len*/ SSD_FULL_SIZE, 3998 /*timeout*/ SCSIOP_TIMEOUT); 3999 4000 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4001 if (error != 0) 4002 goto bailout; 4003 4004 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 4005 error = EINVAL; 4006 goto bailout; 4007 } 4008 4009 /* 4010 * The operation was successful. We could just copy the settings 4011 * the user requested, but just in case the drive ignored some of 4012 * our settings, let's ask for status again. 4013 */ 4014 error = sagetparams(periph, SA_PARAM_SPEED | SA_PARAM_LBP, 4015 NULL, NULL, NULL, &buff_mode, NULL, ¤t_speed, NULL, NULL, 4016 NULL, NULL, dp_page, dp_size, 0); 4017 4018 bailout: 4019 if (ccb != NULL) 4020 xpt_release_ccb(ccb); 4021 free(mode10_hdr, M_SCSISA); 4022 free(mode10_changeable, M_SCSISA); 4023 return (error); 4024 } 4025 4026 /* 4027 * The purpose of this function is to set one of four different parameters 4028 * for a tape drive: 4029 * - blocksize 4030 * - density 4031 * - compression / compression algorithm 4032 * - buffering mode 4033 * 4034 * The assumption is that this will be called from saioctl(), and therefore 4035 * from a process context. Thus the waiting malloc calls below. If that 4036 * assumption ever changes, the malloc calls should be changed to be 4037 * NOWAIT mallocs. 4038 * 4039 * Any or all of the four parameters may be set when this function is 4040 * called. It should handle setting more than one parameter at once. 4041 */ 4042 static int 4043 sasetparams(struct cam_periph *periph, sa_params params_to_set, 4044 u_int32_t blocksize, u_int8_t density, u_int32_t calg, 4045 u_int32_t sense_flags) 4046 { 4047 struct sa_softc *softc; 4048 u_int32_t current_blocksize; 4049 u_int32_t current_calg; 4050 u_int8_t current_density; 4051 u_int8_t current_speed; 4052 int comp_enabled, comp_supported; 4053 void *mode_buffer; 4054 int mode_buffer_len; 4055 struct scsi_mode_header_6 *mode_hdr; 4056 struct scsi_mode_blk_desc *mode_blk; 4057 sa_comp_t *ccomp, *cpage; 4058 int buff_mode; 4059 union ccb *ccb = NULL; 4060 int error; 4061 4062 softc = (struct sa_softc *)periph->softc; 4063 4064 ccomp = malloc(sizeof (sa_comp_t), M_SCSISA, M_NOWAIT); 4065 if (ccomp == NULL) 4066 return (ENOMEM); 4067 4068 /* 4069 * Since it doesn't make sense to set the number of blocks, or 4070 * write protection, we won't try to get the current value. We 4071 * always want to get the blocksize, so we can set it back to the 4072 * proper value. 4073 */ 4074 error = sagetparams(periph, 4075 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED, 4076 ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL, 4077 ¤t_speed, &comp_supported, &comp_enabled, 4078 ¤t_calg, ccomp, NULL, 0, 0); 4079 4080 if (error != 0) { 4081 free(ccomp, M_SCSISA); 4082 return (error); 4083 } 4084 4085 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); 4086 if (params_to_set & SA_PARAM_COMPRESSION) 4087 mode_buffer_len += sizeof (sa_comp_t); 4088 4089 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO); 4090 if (mode_buffer == NULL) { 4091 free(ccomp, M_SCSISA); 4092 return (ENOMEM); 4093 } 4094 4095 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; 4096 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 4097 4098 ccb = cam_periph_getccb(periph, 1); 4099 4100 retry: 4101 4102 if (params_to_set & SA_PARAM_COMPRESSION) { 4103 if (mode_blk) { 4104 cpage = (sa_comp_t *)&mode_blk[1]; 4105 } else { 4106 cpage = (sa_comp_t *)&mode_hdr[1]; 4107 } 4108 bcopy(ccomp, cpage, sizeof (sa_comp_t)); 4109 cpage->hdr.pagecode &= ~0x80; 4110 } else 4111 cpage = NULL; 4112 4113 /* 4114 * If the caller wants us to set the blocksize, use the one they 4115 * pass in. Otherwise, use the blocksize we got back from the 4116 * mode select above. 4117 */ 4118 if (mode_blk) { 4119 if (params_to_set & SA_PARAM_BLOCKSIZE) 4120 scsi_ulto3b(blocksize, mode_blk->blklen); 4121 else 4122 scsi_ulto3b(current_blocksize, mode_blk->blklen); 4123 4124 /* 4125 * Set density if requested, else preserve old density. 4126 * SCSI_SAME_DENSITY only applies to SCSI-2 or better 4127 * devices, else density we've latched up in our softc. 4128 */ 4129 if (params_to_set & SA_PARAM_DENSITY) { 4130 mode_blk->density = density; 4131 } else if (softc->scsi_rev > SCSI_REV_CCS) { 4132 mode_blk->density = SCSI_SAME_DENSITY; 4133 } else { 4134 mode_blk->density = softc->media_density; 4135 } 4136 } 4137 4138 /* 4139 * For mode selects, these two fields must be zero. 4140 */ 4141 mode_hdr->data_length = 0; 4142 mode_hdr->medium_type = 0; 4143 4144 /* set the speed to the current value */ 4145 mode_hdr->dev_spec = current_speed; 4146 4147 /* if set, set single-initiator buffering mode */ 4148 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) { 4149 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF; 4150 } 4151 4152 if (mode_blk) 4153 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc); 4154 else 4155 mode_hdr->blk_desc_len = 0; 4156 4157 /* 4158 * First, if the user wants us to set the compression algorithm or 4159 * just turn compression on, check to make sure that this drive 4160 * supports compression. 4161 */ 4162 if (params_to_set & SA_PARAM_COMPRESSION) { 4163 /* 4164 * If the compression algorithm is 0, disable compression. 4165 * If the compression algorithm is non-zero, enable 4166 * compression and set the compression type to the 4167 * specified compression algorithm, unless the algorithm is 4168 * MT_COMP_ENABLE. In that case, we look at the 4169 * compression algorithm that is currently set and if it is 4170 * non-zero, we leave it as-is. If it is zero, and we have 4171 * saved a compression algorithm from a time when 4172 * compression was enabled before, set the compression to 4173 * the saved value. 4174 */ 4175 switch (ccomp->hdr.pagecode & ~0x80) { 4176 case SA_DEVICE_CONFIGURATION_PAGE: 4177 { 4178 struct scsi_dev_conf_page *dcp = &cpage->dconf; 4179 if (calg == 0) { 4180 dcp->sel_comp_alg = SA_COMP_NONE; 4181 break; 4182 } 4183 if (calg != MT_COMP_ENABLE) { 4184 dcp->sel_comp_alg = calg; 4185 } else if (dcp->sel_comp_alg == SA_COMP_NONE && 4186 softc->saved_comp_algorithm != 0) { 4187 dcp->sel_comp_alg = softc->saved_comp_algorithm; 4188 } 4189 break; 4190 } 4191 case SA_DATA_COMPRESSION_PAGE: 4192 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) { 4193 struct scsi_data_compression_page *dcp = &cpage->dcomp; 4194 if (calg == 0) { 4195 /* 4196 * Disable compression, but leave the 4197 * decompression and the capability bit 4198 * alone. 4199 */ 4200 dcp->dce_and_dcc = SA_DCP_DCC; 4201 dcp->dde_and_red |= SA_DCP_DDE; 4202 break; 4203 } 4204 /* enable compression && decompression */ 4205 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC; 4206 dcp->dde_and_red |= SA_DCP_DDE; 4207 /* 4208 * If there, use compression algorithm from caller. 4209 * Otherwise, if there's a saved compression algorithm 4210 * and there is no current algorithm, use the saved 4211 * algorithm. Else parrot back what we got and hope 4212 * for the best. 4213 */ 4214 if (calg != MT_COMP_ENABLE) { 4215 scsi_ulto4b(calg, dcp->comp_algorithm); 4216 scsi_ulto4b(calg, dcp->decomp_algorithm); 4217 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 && 4218 softc->saved_comp_algorithm != 0) { 4219 scsi_ulto4b(softc->saved_comp_algorithm, 4220 dcp->comp_algorithm); 4221 scsi_ulto4b(softc->saved_comp_algorithm, 4222 dcp->decomp_algorithm); 4223 } 4224 break; 4225 } 4226 /* 4227 * Compression does not appear to be supported- 4228 * at least via the DATA COMPRESSION page. It 4229 * would be too much to ask us to believe that 4230 * the page itself is supported, but incorrectly 4231 * reports an ability to manipulate data compression, 4232 * so we'll assume that this device doesn't support 4233 * compression. We can just fall through for that. 4234 */ 4235 /* FALLTHROUGH */ 4236 default: 4237 /* 4238 * The drive doesn't seem to support compression, 4239 * so turn off the set compression bit. 4240 */ 4241 params_to_set &= ~SA_PARAM_COMPRESSION; 4242 xpt_print(periph->path, 4243 "device does not seem to support compression\n"); 4244 4245 /* 4246 * If that was the only thing the user wanted us to set, 4247 * clean up allocated resources and return with 4248 * 'operation not supported'. 4249 */ 4250 if (params_to_set == SA_PARAM_NONE) { 4251 free(mode_buffer, M_SCSISA); 4252 xpt_release_ccb(ccb); 4253 return (ENODEV); 4254 } 4255 4256 /* 4257 * That wasn't the only thing the user wanted us to set. 4258 * So, decrease the stated mode buffer length by the 4259 * size of the compression mode page. 4260 */ 4261 mode_buffer_len -= sizeof(sa_comp_t); 4262 } 4263 } 4264 4265 /* It is safe to retry this operation */ 4266 scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, 4267 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE, 4268 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 4269 4270 error = cam_periph_runccb(ccb, saerror, 0, 4271 sense_flags, softc->device_stats); 4272 4273 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 4274 int idx; 4275 char *xyz = mode_buffer; 4276 xpt_print_path(periph->path); 4277 printf("Err%d, Mode Select Data=", error); 4278 for (idx = 0; idx < mode_buffer_len; idx++) 4279 printf(" 0x%02x", xyz[idx] & 0xff); 4280 printf("\n"); 4281 } 4282 4283 4284 if (error) { 4285 /* 4286 * If we can, try without setting density/blocksize. 4287 */ 4288 if (mode_blk) { 4289 if ((params_to_set & 4290 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) { 4291 mode_blk = NULL; 4292 goto retry; 4293 } 4294 } else { 4295 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 4296 cpage = (sa_comp_t *)&mode_blk[1]; 4297 } 4298 4299 /* 4300 * If we were setting the blocksize, and that failed, we 4301 * want to set it to its original value. If we weren't 4302 * setting the blocksize, we don't want to change it. 4303 */ 4304 scsi_ulto3b(current_blocksize, mode_blk->blklen); 4305 4306 /* 4307 * Set density if requested, else preserve old density. 4308 * SCSI_SAME_DENSITY only applies to SCSI-2 or better 4309 * devices, else density we've latched up in our softc. 4310 */ 4311 if (params_to_set & SA_PARAM_DENSITY) { 4312 mode_blk->density = current_density; 4313 } else if (softc->scsi_rev > SCSI_REV_CCS) { 4314 mode_blk->density = SCSI_SAME_DENSITY; 4315 } else { 4316 mode_blk->density = softc->media_density; 4317 } 4318 4319 if (params_to_set & SA_PARAM_COMPRESSION) 4320 bcopy(ccomp, cpage, sizeof (sa_comp_t)); 4321 4322 /* 4323 * The retry count is the only CCB field that might have been 4324 * changed that we care about, so reset it back to 1. 4325 */ 4326 ccb->ccb_h.retry_count = 1; 4327 cam_periph_runccb(ccb, saerror, 0, sense_flags, 4328 softc->device_stats); 4329 } 4330 4331 xpt_release_ccb(ccb); 4332 4333 if (ccomp != NULL) 4334 free(ccomp, M_SCSISA); 4335 4336 if (params_to_set & SA_PARAM_COMPRESSION) { 4337 if (error) { 4338 softc->flags &= ~SA_FLAG_COMP_ENABLED; 4339 /* 4340 * Even if we get an error setting compression, 4341 * do not say that we don't support it. We could 4342 * have been wrong, or it may be media specific. 4343 * softc->flags &= ~SA_FLAG_COMP_SUPP; 4344 */ 4345 softc->saved_comp_algorithm = softc->comp_algorithm; 4346 softc->comp_algorithm = 0; 4347 } else { 4348 softc->flags |= SA_FLAG_COMP_ENABLED; 4349 softc->comp_algorithm = calg; 4350 } 4351 } 4352 4353 free(mode_buffer, M_SCSISA); 4354 return (error); 4355 } 4356 4357 static int 4358 saextget(struct cdev *dev, struct cam_periph *periph, struct sbuf *sb, 4359 struct mtextget *g) 4360 { 4361 int indent, error; 4362 char tmpstr[80]; 4363 struct sa_softc *softc; 4364 int tmpint; 4365 uint32_t maxio_tmp; 4366 struct ccb_getdev cgd; 4367 4368 softc = (struct sa_softc *)periph->softc; 4369 4370 error = 0; 4371 4372 error = sagetparams_common(dev, periph); 4373 if (error) 4374 goto extget_bailout; 4375 if (!SA_IS_CTRL(dev) && !softc->open_pending_mount) 4376 sagetpos(periph); 4377 4378 indent = 0; 4379 SASBADDNODE(sb, indent, mtextget); 4380 /* 4381 * Basic CAM peripheral information. 4382 */ 4383 SASBADDVARSTR(sb, indent, periph->periph_name, %s, periph_name, 4384 strlen(periph->periph_name) + 1); 4385 SASBADDUINT(sb, indent, periph->unit_number, %u, unit_number); 4386 xpt_setup_ccb(&cgd.ccb_h, 4387 periph->path, 4388 CAM_PRIORITY_NORMAL); 4389 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 4390 xpt_action((union ccb *)&cgd); 4391 if ((cgd.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 4392 g->status = MT_EXT_GET_ERROR; 4393 snprintf(g->error_str, sizeof(g->error_str), 4394 "Error %#x returned for XPT_GDEV_TYPE CCB", 4395 cgd.ccb_h.status); 4396 goto extget_bailout; 4397 } 4398 4399 cam_strvis(tmpstr, cgd.inq_data.vendor, 4400 sizeof(cgd.inq_data.vendor), sizeof(tmpstr)); 4401 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, vendor, 4402 sizeof(cgd.inq_data.vendor) + 1, "SCSI Vendor ID"); 4403 4404 cam_strvis(tmpstr, cgd.inq_data.product, 4405 sizeof(cgd.inq_data.product), sizeof(tmpstr)); 4406 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, product, 4407 sizeof(cgd.inq_data.product) + 1, "SCSI Product ID"); 4408 4409 cam_strvis(tmpstr, cgd.inq_data.revision, 4410 sizeof(cgd.inq_data.revision), sizeof(tmpstr)); 4411 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, revision, 4412 sizeof(cgd.inq_data.revision) + 1, "SCSI Revision"); 4413 4414 if (cgd.serial_num_len > 0) { 4415 char *tmpstr2; 4416 size_t ts2_len; 4417 int ts2_malloc; 4418 4419 ts2_len = 0; 4420 4421 if (cgd.serial_num_len > sizeof(tmpstr)) { 4422 ts2_len = cgd.serial_num_len + 1; 4423 ts2_malloc = 1; 4424 tmpstr2 = malloc(ts2_len, M_SCSISA, M_WAITOK | M_ZERO); 4425 } else { 4426 ts2_len = sizeof(tmpstr); 4427 ts2_malloc = 0; 4428 tmpstr2 = tmpstr; 4429 } 4430 4431 cam_strvis(tmpstr2, cgd.serial_num, cgd.serial_num_len, 4432 ts2_len); 4433 4434 SASBADDVARSTRDESC(sb, indent, tmpstr2, %s, serial_num, 4435 (ssize_t)cgd.serial_num_len + 1, "Serial Number"); 4436 if (ts2_malloc != 0) 4437 free(tmpstr2, M_SCSISA); 4438 } else { 4439 /* 4440 * We return a serial_num element in any case, but it will 4441 * be empty if the device has no serial number. 4442 */ 4443 tmpstr[0] = '\0'; 4444 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, serial_num, 4445 (ssize_t)0, "Serial Number"); 4446 } 4447 4448 SASBADDUINTDESC(sb, indent, softc->maxio, %u, maxio, 4449 "Maximum I/O size allowed by driver and controller"); 4450 4451 SASBADDUINTDESC(sb, indent, softc->cpi_maxio, %u, cpi_maxio, 4452 "Maximum I/O size reported by controller"); 4453 4454 SASBADDUINTDESC(sb, indent, softc->max_blk, %u, max_blk, 4455 "Maximum block size supported by tape drive and media"); 4456 4457 SASBADDUINTDESC(sb, indent, softc->min_blk, %u, min_blk, 4458 "Minimum block size supported by tape drive and media"); 4459 4460 SASBADDUINTDESC(sb, indent, softc->blk_gran, %u, blk_gran, 4461 "Block granularity supported by tape drive and media"); 4462 4463 maxio_tmp = min(softc->max_blk, softc->maxio); 4464 4465 SASBADDUINTDESC(sb, indent, maxio_tmp, %u, max_effective_iosize, 4466 "Maximum possible I/O size"); 4467 4468 SASBADDINTDESC(sb, indent, softc->flags & SA_FLAG_FIXED ? 1 : 0, %d, 4469 fixed_mode, "Set to 1 for fixed block mode, 0 for variable block"); 4470 4471 /* 4472 * XXX KDM include SIM, bus, target, LUN? 4473 */ 4474 if (softc->flags & SA_FLAG_COMP_UNSUPP) 4475 tmpint = 0; 4476 else 4477 tmpint = 1; 4478 SASBADDINTDESC(sb, indent, tmpint, %d, compression_supported, 4479 "Set to 1 if compression is supported, 0 if not"); 4480 if (softc->flags & SA_FLAG_COMP_ENABLED) 4481 tmpint = 1; 4482 else 4483 tmpint = 0; 4484 SASBADDINTDESC(sb, indent, tmpint, %d, compression_enabled, 4485 "Set to 1 if compression is enabled, 0 if not"); 4486 SASBADDUINTDESC(sb, indent, softc->comp_algorithm, %u, 4487 compression_algorithm, "Numeric compression algorithm"); 4488 4489 safillprot(softc, &indent, sb); 4490 4491 SASBADDUINTDESC(sb, indent, softc->media_blksize, %u, 4492 media_blocksize, "Block size reported by drive or set by user"); 4493 SASBADDINTDESC(sb, indent, (intmax_t)softc->fileno, %jd, 4494 calculated_fileno, "Calculated file number, -1 if unknown"); 4495 SASBADDINTDESC(sb, indent, (intmax_t)softc->blkno, %jd, 4496 calculated_rel_blkno, "Calculated block number relative to file, " 4497 "set to -1 if unknown"); 4498 SASBADDINTDESC(sb, indent, (intmax_t)softc->rep_fileno, %jd, 4499 reported_fileno, "File number reported by drive, -1 if unknown"); 4500 SASBADDINTDESC(sb, indent, (intmax_t)softc->rep_blkno, %jd, 4501 reported_blkno, "Block number relative to BOP/BOT reported by " 4502 "drive, -1 if unknown"); 4503 SASBADDINTDESC(sb, indent, (intmax_t)softc->partition, %jd, 4504 partition, "Current partition number, 0 is the default"); 4505 SASBADDINTDESC(sb, indent, softc->bop, %d, bop, 4506 "Set to 1 if drive is at the beginning of partition/tape, 0 if " 4507 "not, -1 if unknown"); 4508 SASBADDINTDESC(sb, indent, softc->eop, %d, eop, 4509 "Set to 1 if drive is past early warning, 0 if not, -1 if unknown"); 4510 SASBADDINTDESC(sb, indent, softc->bpew, %d, bpew, 4511 "Set to 1 if drive is past programmable early warning, 0 if not, " 4512 "-1 if unknown"); 4513 SASBADDINTDESC(sb, indent, (intmax_t)softc->last_io_resid, %jd, 4514 residual, "Residual for the last I/O"); 4515 /* 4516 * XXX KDM should we send a string with the current driver 4517 * status already decoded instead of a numeric value? 4518 */ 4519 SASBADDINTDESC(sb, indent, softc->dsreg, %d, dsreg, 4520 "Current state of the driver"); 4521 4522 safilldensitysb(softc, &indent, sb); 4523 4524 SASBENDNODE(sb, indent, mtextget); 4525 4526 extget_bailout: 4527 4528 return (error); 4529 } 4530 4531 static int 4532 saparamget(struct sa_softc *softc, struct sbuf *sb) 4533 { 4534 int indent; 4535 4536 indent = 0; 4537 SASBADDNODE(sb, indent, mtparamget); 4538 SASBADDINTDESC(sb, indent, softc->sili, %d, sili, 4539 "Suppress an error on underlength variable reads"); 4540 SASBADDINTDESC(sb, indent, softc->eot_warn, %d, eot_warn, 4541 "Return an error to warn that end of tape is approaching"); 4542 safillprot(softc, &indent, sb); 4543 SASBENDNODE(sb, indent, mtparamget); 4544 4545 return (0); 4546 } 4547 4548 static void 4549 saprevent(struct cam_periph *periph, int action) 4550 { 4551 struct sa_softc *softc; 4552 union ccb *ccb; 4553 int error, sf; 4554 4555 softc = (struct sa_softc *)periph->softc; 4556 4557 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0) 4558 return; 4559 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0) 4560 return; 4561 4562 /* 4563 * We can be quiet about illegal requests. 4564 */ 4565 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 4566 sf = 0; 4567 } else 4568 sf = SF_QUIET_IR; 4569 4570 ccb = cam_periph_getccb(periph, 1); 4571 4572 /* It is safe to retry this operation */ 4573 scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action, 4574 SSD_FULL_SIZE, SCSIOP_TIMEOUT); 4575 4576 error = cam_periph_runccb(ccb, saerror, 0, sf, softc->device_stats); 4577 if (error == 0) { 4578 if (action == PR_ALLOW) 4579 softc->flags &= ~SA_FLAG_TAPE_LOCKED; 4580 else 4581 softc->flags |= SA_FLAG_TAPE_LOCKED; 4582 } 4583 4584 xpt_release_ccb(ccb); 4585 } 4586 4587 static int 4588 sarewind(struct cam_periph *periph) 4589 { 4590 union ccb *ccb; 4591 struct sa_softc *softc; 4592 int error; 4593 4594 softc = (struct sa_softc *)periph->softc; 4595 4596 ccb = cam_periph_getccb(periph, 1); 4597 4598 /* It is safe to retry this operation */ 4599 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, 4600 SSD_FULL_SIZE, REWIND_TIMEOUT); 4601 4602 softc->dsreg = MTIO_DSREG_REW; 4603 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4604 softc->dsreg = MTIO_DSREG_REST; 4605 4606 xpt_release_ccb(ccb); 4607 if (error == 0) { 4608 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0; 4609 softc->rep_fileno = softc->rep_blkno = (daddr_t) 0; 4610 } else { 4611 softc->fileno = softc->blkno = (daddr_t) -1; 4612 softc->partition = (daddr_t) -1; 4613 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1; 4614 } 4615 return (error); 4616 } 4617 4618 static int 4619 saspace(struct cam_periph *periph, int count, scsi_space_code code) 4620 { 4621 union ccb *ccb; 4622 struct sa_softc *softc; 4623 int error; 4624 4625 softc = (struct sa_softc *)periph->softc; 4626 4627 ccb = cam_periph_getccb(periph, 1); 4628 4629 /* This cannot be retried */ 4630 4631 scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count, 4632 SSD_FULL_SIZE, SPACE_TIMEOUT); 4633 4634 /* 4635 * Clear residual because we will be using it. 4636 */ 4637 softc->last_ctl_resid = 0; 4638 4639 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD; 4640 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4641 softc->dsreg = MTIO_DSREG_REST; 4642 4643 xpt_release_ccb(ccb); 4644 4645 /* 4646 * If a spacing operation has failed, we need to invalidate 4647 * this mount. 4648 * 4649 * If the spacing operation was setmarks or to end of recorded data, 4650 * we no longer know our relative position. 4651 * 4652 * If the spacing operations was spacing files in reverse, we 4653 * take account of the residual, but still check against less 4654 * than zero- if we've gone negative, we must have hit BOT. 4655 * 4656 * If the spacing operations was spacing records in reverse and 4657 * we have a residual, we've either hit BOT or hit a filemark. 4658 * In the former case, we know our new record number (0). In 4659 * the latter case, we have absolutely no idea what the real 4660 * record number is- we've stopped between the end of the last 4661 * record in the previous file and the filemark that stopped 4662 * our spacing backwards. 4663 */ 4664 if (error) { 4665 softc->fileno = softc->blkno = (daddr_t) -1; 4666 softc->rep_blkno = softc->partition = (daddr_t) -1; 4667 softc->rep_fileno = (daddr_t) -1; 4668 } else if (code == SS_SETMARKS || code == SS_EOD) { 4669 softc->fileno = softc->blkno = (daddr_t) -1; 4670 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) { 4671 softc->fileno += (count - softc->last_ctl_resid); 4672 if (softc->fileno < 0) /* we must of hit BOT */ 4673 softc->fileno = 0; 4674 softc->blkno = 0; 4675 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) { 4676 softc->blkno += (count - softc->last_ctl_resid); 4677 if (count < 0) { 4678 if (softc->last_ctl_resid || softc->blkno < 0) { 4679 if (softc->fileno == 0) { 4680 softc->blkno = 0; 4681 } else { 4682 softc->blkno = (daddr_t) -1; 4683 } 4684 } 4685 } 4686 } 4687 if (error == 0) 4688 sagetpos(periph); 4689 4690 return (error); 4691 } 4692 4693 static int 4694 sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks, int immed) 4695 { 4696 union ccb *ccb; 4697 struct sa_softc *softc; 4698 int error, nwm = 0; 4699 4700 softc = (struct sa_softc *)periph->softc; 4701 if (softc->open_rdonly) 4702 return (EBADF); 4703 4704 ccb = cam_periph_getccb(periph, 1); 4705 /* 4706 * Clear residual because we will be using it. 4707 */ 4708 softc->last_ctl_resid = 0; 4709 4710 softc->dsreg = MTIO_DSREG_FMK; 4711 /* this *must* not be retried */ 4712 scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, 4713 immed, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT); 4714 softc->dsreg = MTIO_DSREG_REST; 4715 4716 4717 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4718 4719 if (error == 0 && nmarks) { 4720 struct sa_softc *softc = (struct sa_softc *)periph->softc; 4721 nwm = nmarks - softc->last_ctl_resid; 4722 softc->filemarks += nwm; 4723 } 4724 4725 xpt_release_ccb(ccb); 4726 4727 /* 4728 * Update relative positions (if we're doing that). 4729 */ 4730 if (error) { 4731 softc->fileno = softc->blkno = softc->partition = (daddr_t) -1; 4732 } else if (softc->fileno != (daddr_t) -1) { 4733 softc->fileno += nwm; 4734 softc->blkno = 0; 4735 } 4736 4737 /* 4738 * Ask the tape drive for position information. 4739 */ 4740 sagetpos(periph); 4741 4742 /* 4743 * If we got valid position information, since we just wrote a file 4744 * mark, we know we're at the file mark and block 0 after that 4745 * filemark. 4746 */ 4747 if (softc->rep_fileno != (daddr_t) -1) { 4748 softc->fileno = softc->rep_fileno; 4749 softc->blkno = 0; 4750 } 4751 4752 return (error); 4753 } 4754 4755 static int 4756 sagetpos(struct cam_periph *periph) 4757 { 4758 union ccb *ccb; 4759 struct scsi_tape_position_long_data long_pos; 4760 struct sa_softc *softc = (struct sa_softc *)periph->softc; 4761 int error; 4762 4763 if (softc->quirks & SA_QUIRK_NO_LONG_POS) { 4764 softc->rep_fileno = (daddr_t) -1; 4765 softc->rep_blkno = (daddr_t) -1; 4766 softc->bop = softc->eop = softc->bpew = -1; 4767 return (EOPNOTSUPP); 4768 } 4769 4770 bzero(&long_pos, sizeof(long_pos)); 4771 4772 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 4773 scsi_read_position_10(&ccb->csio, 4774 /*retries*/ 1, 4775 /*cbfcnp*/ sadone, 4776 /*tag_action*/ MSG_SIMPLE_Q_TAG, 4777 /*service_action*/ SA_RPOS_LONG_FORM, 4778 /*data_ptr*/ (uint8_t *)&long_pos, 4779 /*length*/ sizeof(long_pos), 4780 /*sense_len*/ SSD_FULL_SIZE, 4781 /*timeout*/ SCSIOP_TIMEOUT); 4782 4783 softc->dsreg = MTIO_DSREG_RBSY; 4784 error = cam_periph_runccb(ccb, saerror, 0, SF_QUIET_IR, 4785 softc->device_stats); 4786 softc->dsreg = MTIO_DSREG_REST; 4787 4788 if (error == 0) { 4789 if (long_pos.flags & SA_RPOS_LONG_MPU) { 4790 /* 4791 * If the drive doesn't know what file mark it is 4792 * on, our calculated filemark isn't going to be 4793 * accurate either. 4794 */ 4795 softc->fileno = (daddr_t) -1; 4796 softc->rep_fileno = (daddr_t) -1; 4797 } else { 4798 softc->fileno = softc->rep_fileno = 4799 scsi_8btou64(long_pos.logical_file_num); 4800 } 4801 4802 if (long_pos.flags & SA_RPOS_LONG_LONU) { 4803 softc->partition = (daddr_t) -1; 4804 softc->rep_blkno = (daddr_t) -1; 4805 /* 4806 * If the tape drive doesn't know its block 4807 * position, we can't claim to know it either. 4808 */ 4809 softc->blkno = (daddr_t) -1; 4810 } else { 4811 softc->partition = scsi_4btoul(long_pos.partition); 4812 softc->rep_blkno = 4813 scsi_8btou64(long_pos.logical_object_num); 4814 } 4815 if (long_pos.flags & SA_RPOS_LONG_BOP) 4816 softc->bop = 1; 4817 else 4818 softc->bop = 0; 4819 4820 if (long_pos.flags & SA_RPOS_LONG_EOP) 4821 softc->eop = 1; 4822 else 4823 softc->eop = 0; 4824 4825 if (long_pos.flags & SA_RPOS_LONG_BPEW) 4826 softc->bpew = 1; 4827 else 4828 softc->bpew = 0; 4829 } else if (error == EINVAL) { 4830 /* 4831 * If this drive returned an invalid-request type error, 4832 * then it likely doesn't support the long form report. 4833 */ 4834 softc->quirks |= SA_QUIRK_NO_LONG_POS; 4835 } 4836 4837 if (error != 0) { 4838 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1; 4839 softc->partition = (daddr_t) -1; 4840 softc->bop = softc->eop = softc->bpew = -1; 4841 } 4842 4843 xpt_release_ccb(ccb); 4844 4845 return (error); 4846 } 4847 4848 static int 4849 sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr) 4850 { 4851 struct scsi_tape_position_data loc; 4852 union ccb *ccb; 4853 struct sa_softc *softc = (struct sa_softc *)periph->softc; 4854 int error; 4855 4856 /* 4857 * We try and flush any buffered writes here if we were writing 4858 * and we're trying to get hardware block position. It eats 4859 * up performance substantially, but I'm wary of drive firmware. 4860 * 4861 * I think that *logical* block position is probably okay- 4862 * but hardware block position might have to wait for data 4863 * to hit media to be valid. Caveat Emptor. 4864 */ 4865 4866 if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) { 4867 error = sawritefilemarks(periph, 0, 0, 0); 4868 if (error && error != EACCES) 4869 return (error); 4870 } 4871 4872 ccb = cam_periph_getccb(periph, 1); 4873 scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, 4874 hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 4875 softc->dsreg = MTIO_DSREG_RBSY; 4876 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4877 softc->dsreg = MTIO_DSREG_REST; 4878 4879 if (error == 0) { 4880 if (loc.flags & SA_RPOS_UNCERTAIN) { 4881 error = EINVAL; /* nothing is certain */ 4882 } else { 4883 *blkptr = scsi_4btoul(loc.firstblk); 4884 } 4885 } 4886 4887 xpt_release_ccb(ccb); 4888 return (error); 4889 } 4890 4891 static int 4892 sasetpos(struct cam_periph *periph, int hard, struct mtlocate *locate_info) 4893 { 4894 union ccb *ccb; 4895 struct sa_softc *softc; 4896 int locate16; 4897 int immed, cp; 4898 int error; 4899 4900 /* 4901 * We used to try and flush any buffered writes here. 4902 * Now we push this onto user applications to either 4903 * flush the pending writes themselves (via a zero count 4904 * WRITE FILEMARKS command) or they can trust their tape 4905 * drive to do this correctly for them. 4906 */ 4907 4908 softc = (struct sa_softc *)periph->softc; 4909 ccb = cam_periph_getccb(periph, 1); 4910 4911 cp = locate_info->flags & MT_LOCATE_FLAG_CHANGE_PART ? 1 : 0; 4912 immed = locate_info->flags & MT_LOCATE_FLAG_IMMED ? 1 : 0; 4913 4914 /* 4915 * Determine whether we have to use LOCATE or LOCATE16. The hard 4916 * bit is only possible with LOCATE, but the new ioctls do not 4917 * allow setting that bit. So we can't get into the situation of 4918 * having the hard bit set with a block address that is larger than 4919 * 32-bits. 4920 */ 4921 if (hard != 0) 4922 locate16 = 0; 4923 else if ((locate_info->dest_type != MT_LOCATE_DEST_OBJECT) 4924 || (locate_info->block_address_mode != MT_LOCATE_BAM_IMPLICIT) 4925 || (locate_info->logical_id > SA_SPOS_MAX_BLK)) 4926 locate16 = 1; 4927 else 4928 locate16 = 0; 4929 4930 if (locate16 != 0) { 4931 scsi_locate_16(&ccb->csio, 4932 /*retries*/ 1, 4933 /*cbfcnp*/ sadone, 4934 /*tag_action*/ MSG_SIMPLE_Q_TAG, 4935 /*immed*/ immed, 4936 /*cp*/ cp, 4937 /*dest_type*/ locate_info->dest_type, 4938 /*bam*/ locate_info->block_address_mode, 4939 /*partition*/ locate_info->partition, 4940 /*logical_id*/ locate_info->logical_id, 4941 /*sense_len*/ SSD_FULL_SIZE, 4942 /*timeout*/ SPACE_TIMEOUT); 4943 } else { 4944 uint32_t blk_pointer; 4945 4946 blk_pointer = locate_info->logical_id; 4947 4948 scsi_locate_10(&ccb->csio, 4949 /*retries*/ 1, 4950 /*cbfcnp*/ sadone, 4951 /*tag_action*/ MSG_SIMPLE_Q_TAG, 4952 /*immed*/ immed, 4953 /*cp*/ cp, 4954 /*hard*/ hard, 4955 /*partition*/ locate_info->partition, 4956 /*block_address*/ locate_info->logical_id, 4957 /*sense_len*/ SSD_FULL_SIZE, 4958 /*timeout*/ SPACE_TIMEOUT); 4959 } 4960 4961 softc->dsreg = MTIO_DSREG_POS; 4962 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 4963 softc->dsreg = MTIO_DSREG_REST; 4964 xpt_release_ccb(ccb); 4965 4966 /* 4967 * We assume the calculated file and block numbers are unknown 4968 * unless we have enough information to populate them. 4969 */ 4970 softc->fileno = softc->blkno = (daddr_t) -1; 4971 4972 /* 4973 * If the user requested changing the partition and the request 4974 * succeeded, note the partition. 4975 */ 4976 if ((error == 0) 4977 && (cp != 0)) 4978 softc->partition = locate_info->partition; 4979 else 4980 softc->partition = (daddr_t) -1; 4981 4982 if (error == 0) { 4983 switch (locate_info->dest_type) { 4984 case MT_LOCATE_DEST_FILE: 4985 /* 4986 * This is the only case where we can reliably 4987 * calculate the file and block numbers. 4988 */ 4989 softc->fileno = locate_info->logical_id; 4990 softc->blkno = 0; 4991 break; 4992 case MT_LOCATE_DEST_OBJECT: 4993 case MT_LOCATE_DEST_SET: 4994 case MT_LOCATE_DEST_EOD: 4995 default: 4996 break; 4997 } 4998 } 4999 5000 /* 5001 * Ask the drive for current position information. 5002 */ 5003 sagetpos(periph); 5004 5005 return (error); 5006 } 5007 5008 static int 5009 saretension(struct cam_periph *periph) 5010 { 5011 union ccb *ccb; 5012 struct sa_softc *softc; 5013 int error; 5014 5015 softc = (struct sa_softc *)periph->softc; 5016 5017 ccb = cam_periph_getccb(periph, 1); 5018 5019 /* It is safe to retry this operation */ 5020 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, 5021 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT); 5022 5023 softc->dsreg = MTIO_DSREG_TEN; 5024 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 5025 softc->dsreg = MTIO_DSREG_REST; 5026 5027 xpt_release_ccb(ccb); 5028 if (error == 0) { 5029 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0; 5030 sagetpos(periph); 5031 } else 5032 softc->partition = softc->fileno = softc->blkno = (daddr_t) -1; 5033 return (error); 5034 } 5035 5036 static int 5037 sareservereleaseunit(struct cam_periph *periph, int reserve) 5038 { 5039 union ccb *ccb; 5040 struct sa_softc *softc; 5041 int error; 5042 5043 softc = (struct sa_softc *)periph->softc; 5044 ccb = cam_periph_getccb(periph, 1); 5045 5046 /* It is safe to retry this operation */ 5047 scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, 5048 FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve); 5049 softc->dsreg = MTIO_DSREG_RBSY; 5050 error = cam_periph_runccb(ccb, saerror, 0, 5051 SF_RETRY_UA | SF_NO_PRINT, softc->device_stats); 5052 softc->dsreg = MTIO_DSREG_REST; 5053 xpt_release_ccb(ccb); 5054 5055 /* 5056 * If the error was Illegal Request, then the device doesn't support 5057 * RESERVE/RELEASE. This is not an error. 5058 */ 5059 if (error == EINVAL) { 5060 error = 0; 5061 } 5062 5063 return (error); 5064 } 5065 5066 static int 5067 saloadunload(struct cam_periph *periph, int load) 5068 { 5069 union ccb *ccb; 5070 struct sa_softc *softc; 5071 int error; 5072 5073 softc = (struct sa_softc *)periph->softc; 5074 5075 ccb = cam_periph_getccb(periph, 1); 5076 5077 /* It is safe to retry this operation */ 5078 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, 5079 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT); 5080 5081 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL; 5082 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 5083 softc->dsreg = MTIO_DSREG_REST; 5084 xpt_release_ccb(ccb); 5085 5086 if (error || load == 0) { 5087 softc->partition = softc->fileno = softc->blkno = (daddr_t) -1; 5088 softc->rep_fileno = softc->rep_blkno = (daddr_t) -1; 5089 } else if (error == 0) { 5090 softc->partition = softc->fileno = softc->blkno = (daddr_t) 0; 5091 sagetpos(periph); 5092 } 5093 return (error); 5094 } 5095 5096 static int 5097 saerase(struct cam_periph *periph, int longerase) 5098 { 5099 5100 union ccb *ccb; 5101 struct sa_softc *softc; 5102 int error; 5103 5104 softc = (struct sa_softc *)periph->softc; 5105 if (softc->open_rdonly) 5106 return (EBADF); 5107 5108 ccb = cam_periph_getccb(periph, 1); 5109 5110 scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase, 5111 SSD_FULL_SIZE, ERASE_TIMEOUT); 5112 5113 softc->dsreg = MTIO_DSREG_ZER; 5114 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 5115 softc->dsreg = MTIO_DSREG_REST; 5116 5117 xpt_release_ccb(ccb); 5118 return (error); 5119 } 5120 5121 /* 5122 * Fill an sbuf with density data in XML format. This particular macro 5123 * works for multi-byte integer fields. 5124 * 5125 * Note that 1 byte fields aren't supported here. The reason is that the 5126 * compiler does not evaluate the sizeof(), and assumes that any of the 5127 * sizes are possible for a given field. So passing in a multi-byte 5128 * field will result in a warning that the assignment makes an integer 5129 * from a pointer without a cast, if there is an assignment in the 1 byte 5130 * case. 5131 */ 5132 #define SAFILLDENSSB(dens_data, sb, indent, field, desc_remain, \ 5133 len_to_go, cur_offset, desc){ \ 5134 size_t cur_field_len; \ 5135 \ 5136 cur_field_len = sizeof(dens_data->field); \ 5137 if (desc_remain < cur_field_len) { \ 5138 len_to_go -= desc_remain; \ 5139 cur_offset += desc_remain; \ 5140 continue; \ 5141 } \ 5142 len_to_go -= cur_field_len; \ 5143 cur_offset += cur_field_len; \ 5144 desc_remain -= cur_field_len; \ 5145 \ 5146 switch (sizeof(dens_data->field)) { \ 5147 case 1: \ 5148 KASSERT(1 == 0, ("Programmer error, invalid 1 byte " \ 5149 "field width for SAFILLDENSFIELD")); \ 5150 break; \ 5151 case 2: \ 5152 SASBADDUINTDESC(sb, indent, \ 5153 scsi_2btoul(dens_data->field), %u, field, desc); \ 5154 break; \ 5155 case 3: \ 5156 SASBADDUINTDESC(sb, indent, \ 5157 scsi_3btoul(dens_data->field), %u, field, desc); \ 5158 break; \ 5159 case 4: \ 5160 SASBADDUINTDESC(sb, indent, \ 5161 scsi_4btoul(dens_data->field), %u, field, desc); \ 5162 break; \ 5163 case 8: \ 5164 SASBADDUINTDESC(sb, indent, \ 5165 (uintmax_t)scsi_8btou64(dens_data->field), %ju, \ 5166 field, desc); \ 5167 break; \ 5168 default: \ 5169 break; \ 5170 } \ 5171 }; 5172 /* 5173 * Fill an sbuf with density data in XML format. This particular macro 5174 * works for strings. 5175 */ 5176 #define SAFILLDENSSBSTR(dens_data, sb, indent, field, desc_remain, \ 5177 len_to_go, cur_offset, desc){ \ 5178 size_t cur_field_len; \ 5179 char tmpstr[32]; \ 5180 \ 5181 cur_field_len = sizeof(dens_data->field); \ 5182 if (desc_remain < cur_field_len) { \ 5183 len_to_go -= desc_remain; \ 5184 cur_offset += desc_remain; \ 5185 continue; \ 5186 } \ 5187 len_to_go -= cur_field_len; \ 5188 cur_offset += cur_field_len; \ 5189 desc_remain -= cur_field_len; \ 5190 \ 5191 cam_strvis(tmpstr, dens_data->field, \ 5192 sizeof(dens_data->field), sizeof(tmpstr)); \ 5193 SASBADDVARSTRDESC(sb, indent, tmpstr, %s, field, \ 5194 strlen(tmpstr) + 1, desc); \ 5195 }; 5196 5197 /* 5198 * Fill an sbuf with density data descriptors. 5199 */ 5200 static void 5201 safilldenstypesb(struct sbuf *sb, int *indent, uint8_t *buf, int buf_len, 5202 int is_density) 5203 { 5204 struct scsi_density_hdr *hdr; 5205 uint32_t hdr_len; 5206 int len_to_go, cur_offset; 5207 int length_offset; 5208 int num_reports, need_close; 5209 5210 /* 5211 * We need at least the header length. Note that this isn't an 5212 * error, not all tape drives will have every data type. 5213 */ 5214 if (buf_len < sizeof(*hdr)) 5215 goto bailout; 5216 5217 5218 hdr = (struct scsi_density_hdr *)buf; 5219 hdr_len = scsi_2btoul(hdr->length); 5220 len_to_go = min(buf_len - sizeof(*hdr), hdr_len); 5221 if (is_density) { 5222 length_offset = __offsetof(struct scsi_density_data, 5223 bits_per_mm); 5224 } else { 5225 length_offset = __offsetof(struct scsi_medium_type_data, 5226 num_density_codes); 5227 } 5228 cur_offset = sizeof(*hdr); 5229 5230 num_reports = 0; 5231 need_close = 0; 5232 5233 while (len_to_go > length_offset) { 5234 struct scsi_density_data *dens_data; 5235 struct scsi_medium_type_data *type_data; 5236 int desc_remain; 5237 size_t cur_field_len; 5238 5239 dens_data = NULL; 5240 type_data = NULL; 5241 5242 if (is_density) { 5243 dens_data =(struct scsi_density_data *)&buf[cur_offset]; 5244 if (dens_data->byte2 & SDD_DLV) 5245 desc_remain = scsi_2btoul(dens_data->length); 5246 else 5247 desc_remain = SDD_DEFAULT_LENGTH - 5248 length_offset; 5249 } else { 5250 type_data = (struct scsi_medium_type_data *) 5251 &buf[cur_offset]; 5252 desc_remain = scsi_2btoul(type_data->length); 5253 } 5254 5255 len_to_go -= length_offset; 5256 desc_remain = min(desc_remain, len_to_go); 5257 cur_offset += length_offset; 5258 5259 if (need_close != 0) { 5260 SASBENDNODE(sb, *indent, density_entry); 5261 } 5262 5263 SASBADDNODENUM(sb, *indent, density_entry, num_reports); 5264 num_reports++; 5265 need_close = 1; 5266 5267 if (is_density) { 5268 SASBADDUINTDESC(sb, *indent, 5269 dens_data->primary_density_code, %u, 5270 primary_density_code, "Primary Density Code"); 5271 SASBADDUINTDESC(sb, *indent, 5272 dens_data->secondary_density_code, %u, 5273 secondary_density_code, "Secondary Density Code"); 5274 SASBADDUINTDESC(sb, *indent, 5275 dens_data->byte2 & ~SDD_DLV, %#x, density_flags, 5276 "Density Flags"); 5277 5278 SAFILLDENSSB(dens_data, sb, *indent, bits_per_mm, 5279 desc_remain, len_to_go, cur_offset, "Bits per mm"); 5280 SAFILLDENSSB(dens_data, sb, *indent, media_width, 5281 desc_remain, len_to_go, cur_offset, "Media width"); 5282 SAFILLDENSSB(dens_data, sb, *indent, tracks, 5283 desc_remain, len_to_go, cur_offset, 5284 "Number of Tracks"); 5285 SAFILLDENSSB(dens_data, sb, *indent, capacity, 5286 desc_remain, len_to_go, cur_offset, "Capacity"); 5287 5288 SAFILLDENSSBSTR(dens_data, sb, *indent, assigning_org, 5289 desc_remain, len_to_go, cur_offset, 5290 "Assigning Organization"); 5291 5292 SAFILLDENSSBSTR(dens_data, sb, *indent, density_name, 5293 desc_remain, len_to_go, cur_offset, "Density Name"); 5294 5295 SAFILLDENSSBSTR(dens_data, sb, *indent, description, 5296 desc_remain, len_to_go, cur_offset, "Description"); 5297 } else { 5298 int i; 5299 5300 SASBADDUINTDESC(sb, *indent, type_data->medium_type, 5301 %u, medium_type, "Medium Type"); 5302 5303 cur_field_len = 5304 __offsetof(struct scsi_medium_type_data, 5305 media_width) - 5306 __offsetof(struct scsi_medium_type_data, 5307 num_density_codes); 5308 5309 if (desc_remain < cur_field_len) { 5310 len_to_go -= desc_remain; 5311 cur_offset += desc_remain; 5312 continue; 5313 } 5314 len_to_go -= cur_field_len; 5315 cur_offset += cur_field_len; 5316 desc_remain -= cur_field_len; 5317 5318 SASBADDINTDESC(sb, *indent, 5319 type_data->num_density_codes, %d, 5320 num_density_codes, "Number of Density Codes"); 5321 SASBADDNODE(sb, *indent, density_code_list); 5322 for (i = 0; i < type_data->num_density_codes; 5323 i++) { 5324 SASBADDUINTDESC(sb, *indent, 5325 type_data->primary_density_codes[i], %u, 5326 density_code, "Density Code"); 5327 } 5328 SASBENDNODE(sb, *indent, density_code_list); 5329 5330 SAFILLDENSSB(type_data, sb, *indent, media_width, 5331 desc_remain, len_to_go, cur_offset, 5332 "Media width"); 5333 SAFILLDENSSB(type_data, sb, *indent, medium_length, 5334 desc_remain, len_to_go, cur_offset, 5335 "Medium length"); 5336 5337 /* 5338 * Account for the two reserved bytes. 5339 */ 5340 cur_field_len = sizeof(type_data->reserved2); 5341 if (desc_remain < cur_field_len) { 5342 len_to_go -= desc_remain; 5343 cur_offset += desc_remain; 5344 continue; 5345 } 5346 len_to_go -= cur_field_len; 5347 cur_offset += cur_field_len; 5348 desc_remain -= cur_field_len; 5349 5350 SAFILLDENSSBSTR(type_data, sb, *indent, assigning_org, 5351 desc_remain, len_to_go, cur_offset, 5352 "Assigning Organization"); 5353 SAFILLDENSSBSTR(type_data, sb, *indent, 5354 medium_type_name, desc_remain, len_to_go, 5355 cur_offset, "Medium type name"); 5356 SAFILLDENSSBSTR(type_data, sb, *indent, description, 5357 desc_remain, len_to_go, cur_offset, "Description"); 5358 5359 } 5360 } 5361 if (need_close != 0) { 5362 SASBENDNODE(sb, *indent, density_entry); 5363 } 5364 5365 bailout: 5366 return; 5367 } 5368 5369 /* 5370 * Fill an sbuf with density data information 5371 */ 5372 static void 5373 safilldensitysb(struct sa_softc *softc, int *indent, struct sbuf *sb) 5374 { 5375 int i, is_density; 5376 5377 SASBADDNODE(sb, *indent, mtdensity); 5378 SASBADDUINTDESC(sb, *indent, softc->media_density, %u, media_density, 5379 "Current Medium Density"); 5380 is_density = 0; 5381 for (i = 0; i < SA_DENSITY_TYPES; i++) { 5382 int tmpint; 5383 5384 if (softc->density_info_valid[i] == 0) 5385 continue; 5386 5387 SASBADDNODE(sb, *indent, density_report); 5388 if (softc->density_type_bits[i] & SRDS_MEDIUM_TYPE) { 5389 tmpint = 1; 5390 is_density = 0; 5391 } else { 5392 tmpint = 0; 5393 is_density = 1; 5394 } 5395 SASBADDINTDESC(sb, *indent, tmpint, %d, medium_type_report, 5396 "Medium type report"); 5397 5398 if (softc->density_type_bits[i] & SRDS_MEDIA) 5399 tmpint = 1; 5400 else 5401 tmpint = 0; 5402 SASBADDINTDESC(sb, *indent, tmpint, %d, media_report, 5403 "Media report"); 5404 5405 safilldenstypesb(sb, indent, softc->density_info[i], 5406 softc->density_info_valid[i], is_density); 5407 SASBENDNODE(sb, *indent, density_report); 5408 } 5409 SASBENDNODE(sb, *indent, mtdensity); 5410 } 5411 5412 #endif /* _KERNEL */ 5413 5414 /* 5415 * Read tape block limits command. 5416 */ 5417 void 5418 scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries, 5419 void (*cbfcnp)(struct cam_periph *, union ccb *), 5420 u_int8_t tag_action, 5421 struct scsi_read_block_limits_data *rlimit_buf, 5422 u_int8_t sense_len, u_int32_t timeout) 5423 { 5424 struct scsi_read_block_limits *scsi_cmd; 5425 5426 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, 5427 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len, 5428 sizeof(*scsi_cmd), timeout); 5429 5430 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes; 5431 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5432 scsi_cmd->opcode = READ_BLOCK_LIMITS; 5433 } 5434 5435 void 5436 scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries, 5437 void (*cbfcnp)(struct cam_periph *, union ccb *), 5438 u_int8_t tag_action, int readop, int sli, 5439 int fixed, u_int32_t length, u_int8_t *data_ptr, 5440 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout) 5441 { 5442 struct scsi_sa_rw *scsi_cmd; 5443 int read; 5444 5445 read = (readop & SCSI_RW_DIRMASK) == SCSI_RW_READ; 5446 5447 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes; 5448 scsi_cmd->opcode = read ? SA_READ : SA_WRITE; 5449 scsi_cmd->sli_fixed = 0; 5450 if (sli && read) 5451 scsi_cmd->sli_fixed |= SAR_SLI; 5452 if (fixed) 5453 scsi_cmd->sli_fixed |= SARW_FIXED; 5454 scsi_ulto3b(length, scsi_cmd->length); 5455 scsi_cmd->control = 0; 5456 5457 cam_fill_csio(csio, retries, cbfcnp, (read ? CAM_DIR_IN : CAM_DIR_OUT) | 5458 ((readop & SCSI_RW_BIO) != 0 ? CAM_DATA_BIO : 0), 5459 tag_action, data_ptr, dxfer_len, sense_len, 5460 sizeof(*scsi_cmd), timeout); 5461 } 5462 5463 void 5464 scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries, 5465 void (*cbfcnp)(struct cam_periph *, union ccb *), 5466 u_int8_t tag_action, int immediate, int eot, 5467 int reten, int load, u_int8_t sense_len, 5468 u_int32_t timeout) 5469 { 5470 struct scsi_load_unload *scsi_cmd; 5471 5472 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes; 5473 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5474 scsi_cmd->opcode = LOAD_UNLOAD; 5475 if (immediate) 5476 scsi_cmd->immediate = SLU_IMMED; 5477 if (eot) 5478 scsi_cmd->eot_reten_load |= SLU_EOT; 5479 if (reten) 5480 scsi_cmd->eot_reten_load |= SLU_RETEN; 5481 if (load) 5482 scsi_cmd->eot_reten_load |= SLU_LOAD; 5483 5484 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, 5485 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout); 5486 } 5487 5488 void 5489 scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries, 5490 void (*cbfcnp)(struct cam_periph *, union ccb *), 5491 u_int8_t tag_action, int immediate, u_int8_t sense_len, 5492 u_int32_t timeout) 5493 { 5494 struct scsi_rewind *scsi_cmd; 5495 5496 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes; 5497 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5498 scsi_cmd->opcode = REWIND; 5499 if (immediate) 5500 scsi_cmd->immediate = SREW_IMMED; 5501 5502 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5503 0, sense_len, sizeof(*scsi_cmd), timeout); 5504 } 5505 5506 void 5507 scsi_space(struct ccb_scsiio *csio, u_int32_t retries, 5508 void (*cbfcnp)(struct cam_periph *, union ccb *), 5509 u_int8_t tag_action, scsi_space_code code, 5510 u_int32_t count, u_int8_t sense_len, u_int32_t timeout) 5511 { 5512 struct scsi_space *scsi_cmd; 5513 5514 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes; 5515 scsi_cmd->opcode = SPACE; 5516 scsi_cmd->code = code; 5517 scsi_ulto3b(count, scsi_cmd->count); 5518 scsi_cmd->control = 0; 5519 5520 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5521 0, sense_len, sizeof(*scsi_cmd), timeout); 5522 } 5523 5524 void 5525 scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries, 5526 void (*cbfcnp)(struct cam_periph *, union ccb *), 5527 u_int8_t tag_action, int immediate, int setmark, 5528 u_int32_t num_marks, u_int8_t sense_len, 5529 u_int32_t timeout) 5530 { 5531 struct scsi_write_filemarks *scsi_cmd; 5532 5533 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes; 5534 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5535 scsi_cmd->opcode = WRITE_FILEMARKS; 5536 if (immediate) 5537 scsi_cmd->byte2 |= SWFMRK_IMMED; 5538 if (setmark) 5539 scsi_cmd->byte2 |= SWFMRK_WSMK; 5540 5541 scsi_ulto3b(num_marks, scsi_cmd->num_marks); 5542 5543 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5544 0, sense_len, sizeof(*scsi_cmd), timeout); 5545 } 5546 5547 /* 5548 * The reserve and release unit commands differ only by their opcodes. 5549 */ 5550 void 5551 scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries, 5552 void (*cbfcnp)(struct cam_periph *, union ccb *), 5553 u_int8_t tag_action, int third_party, 5554 int third_party_id, u_int8_t sense_len, 5555 u_int32_t timeout, int reserve) 5556 { 5557 struct scsi_reserve_release_unit *scsi_cmd; 5558 5559 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes; 5560 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5561 5562 if (reserve) 5563 scsi_cmd->opcode = RESERVE_UNIT; 5564 else 5565 scsi_cmd->opcode = RELEASE_UNIT; 5566 5567 if (third_party) { 5568 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY; 5569 scsi_cmd->lun_thirdparty |= 5570 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK); 5571 } 5572 5573 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5574 0, sense_len, sizeof(*scsi_cmd), timeout); 5575 } 5576 5577 void 5578 scsi_erase(struct ccb_scsiio *csio, u_int32_t retries, 5579 void (*cbfcnp)(struct cam_periph *, union ccb *), 5580 u_int8_t tag_action, int immediate, int long_erase, 5581 u_int8_t sense_len, u_int32_t timeout) 5582 { 5583 struct scsi_erase *scsi_cmd; 5584 5585 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes; 5586 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5587 5588 scsi_cmd->opcode = ERASE; 5589 5590 if (immediate) 5591 scsi_cmd->lun_imm_long |= SE_IMMED; 5592 5593 if (long_erase) 5594 scsi_cmd->lun_imm_long |= SE_LONG; 5595 5596 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 5597 0, sense_len, sizeof(*scsi_cmd), timeout); 5598 } 5599 5600 /* 5601 * Read Tape Position command. 5602 */ 5603 void 5604 scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries, 5605 void (*cbfcnp)(struct cam_periph *, union ccb *), 5606 u_int8_t tag_action, int hardsoft, 5607 struct scsi_tape_position_data *sbp, 5608 u_int8_t sense_len, u_int32_t timeout) 5609 { 5610 struct scsi_tape_read_position *scmd; 5611 5612 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, 5613 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout); 5614 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes; 5615 bzero(scmd, sizeof(*scmd)); 5616 scmd->opcode = READ_POSITION; 5617 scmd->byte1 = hardsoft; 5618 } 5619 5620 /* 5621 * Read Tape Position command. 5622 */ 5623 void 5624 scsi_read_position_10(struct ccb_scsiio *csio, u_int32_t retries, 5625 void (*cbfcnp)(struct cam_periph *, union ccb *), 5626 u_int8_t tag_action, int service_action, 5627 u_int8_t *data_ptr, u_int32_t length, 5628 u_int32_t sense_len, u_int32_t timeout) 5629 { 5630 struct scsi_tape_read_position *scmd; 5631 5632 cam_fill_csio(csio, 5633 retries, 5634 cbfcnp, 5635 /*flags*/CAM_DIR_IN, 5636 tag_action, 5637 /*data_ptr*/data_ptr, 5638 /*dxfer_len*/length, 5639 sense_len, 5640 sizeof(*scmd), 5641 timeout); 5642 5643 5644 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes; 5645 bzero(scmd, sizeof(*scmd)); 5646 scmd->opcode = READ_POSITION; 5647 scmd->byte1 = service_action; 5648 /* 5649 * The length is only currently set (as of SSC4r03) if the extended 5650 * form is specified. The other forms have fixed lengths. 5651 */ 5652 if (service_action == SA_RPOS_EXTENDED_FORM) 5653 scsi_ulto2b(length, scmd->length); 5654 } 5655 5656 /* 5657 * Set Tape Position command. 5658 */ 5659 void 5660 scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries, 5661 void (*cbfcnp)(struct cam_periph *, union ccb *), 5662 u_int8_t tag_action, int hardsoft, u_int32_t blkno, 5663 u_int8_t sense_len, u_int32_t timeout) 5664 { 5665 struct scsi_tape_locate *scmd; 5666 5667 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, 5668 (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout); 5669 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes; 5670 bzero(scmd, sizeof(*scmd)); 5671 scmd->opcode = LOCATE; 5672 if (hardsoft) 5673 scmd->byte1 |= SA_SPOS_BT; 5674 scsi_ulto4b(blkno, scmd->blkaddr); 5675 } 5676 5677 /* 5678 * XXX KDM figure out how to make a compatibility function. 5679 */ 5680 void 5681 scsi_locate_10(struct ccb_scsiio *csio, u_int32_t retries, 5682 void (*cbfcnp)(struct cam_periph *, union ccb *), 5683 u_int8_t tag_action, int immed, int cp, int hard, 5684 int64_t partition, u_int32_t block_address, 5685 int sense_len, u_int32_t timeout) 5686 { 5687 struct scsi_tape_locate *scmd; 5688 5689 cam_fill_csio(csio, 5690 retries, 5691 cbfcnp, 5692 CAM_DIR_NONE, 5693 tag_action, 5694 /*data_ptr*/ NULL, 5695 /*dxfer_len*/ 0, 5696 sense_len, 5697 sizeof(*scmd), 5698 timeout); 5699 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes; 5700 bzero(scmd, sizeof(*scmd)); 5701 scmd->opcode = LOCATE; 5702 if (immed) 5703 scmd->byte1 |= SA_SPOS_IMMED; 5704 if (cp) 5705 scmd->byte1 |= SA_SPOS_CP; 5706 if (hard) 5707 scmd->byte1 |= SA_SPOS_BT; 5708 scsi_ulto4b(block_address, scmd->blkaddr); 5709 scmd->partition = partition; 5710 } 5711 5712 void 5713 scsi_locate_16(struct ccb_scsiio *csio, u_int32_t retries, 5714 void (*cbfcnp)(struct cam_periph *, union ccb *), 5715 u_int8_t tag_action, int immed, int cp, u_int8_t dest_type, 5716 int bam, int64_t partition, u_int64_t logical_id, 5717 int sense_len, u_int32_t timeout) 5718 { 5719 5720 struct scsi_locate_16 *scsi_cmd; 5721 5722 cam_fill_csio(csio, 5723 retries, 5724 cbfcnp, 5725 /*flags*/CAM_DIR_NONE, 5726 tag_action, 5727 /*data_ptr*/NULL, 5728 /*dxfer_len*/0, 5729 sense_len, 5730 sizeof(*scsi_cmd), 5731 timeout); 5732 5733 scsi_cmd = (struct scsi_locate_16 *)&csio->cdb_io.cdb_bytes; 5734 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5735 scsi_cmd->opcode = LOCATE_16; 5736 if (immed) 5737 scsi_cmd->byte1 |= SA_LC_IMMEDIATE; 5738 if (cp) 5739 scsi_cmd->byte1 |= SA_LC_CP; 5740 scsi_cmd->byte1 |= (dest_type << SA_LC_DEST_TYPE_SHIFT); 5741 5742 scsi_cmd->byte2 |= bam; 5743 scsi_cmd->partition = partition; 5744 scsi_u64to8b(logical_id, scsi_cmd->logical_id); 5745 } 5746 5747 void 5748 scsi_report_density_support(struct ccb_scsiio *csio, u_int32_t retries, 5749 void (*cbfcnp)(struct cam_periph *, union ccb *), 5750 u_int8_t tag_action, int media, int medium_type, 5751 u_int8_t *data_ptr, u_int32_t length, 5752 u_int32_t sense_len, u_int32_t timeout) 5753 { 5754 struct scsi_report_density_support *scsi_cmd; 5755 5756 scsi_cmd =(struct scsi_report_density_support *)&csio->cdb_io.cdb_bytes; 5757 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5758 5759 scsi_cmd->opcode = REPORT_DENSITY_SUPPORT; 5760 if (media != 0) 5761 scsi_cmd->byte1 |= SRDS_MEDIA; 5762 if (medium_type != 0) 5763 scsi_cmd->byte1 |= SRDS_MEDIUM_TYPE; 5764 5765 scsi_ulto2b(length, scsi_cmd->length); 5766 5767 cam_fill_csio(csio, 5768 retries, 5769 cbfcnp, 5770 /*flags*/CAM_DIR_IN, 5771 tag_action, 5772 /*data_ptr*/data_ptr, 5773 /*dxfer_len*/length, 5774 sense_len, 5775 sizeof(*scsi_cmd), 5776 timeout); 5777 } 5778 5779 void 5780 scsi_set_capacity(struct ccb_scsiio *csio, u_int32_t retries, 5781 void (*cbfcnp)(struct cam_periph *, union ccb *), 5782 u_int8_t tag_action, int byte1, u_int32_t proportion, 5783 u_int32_t sense_len, u_int32_t timeout) 5784 { 5785 struct scsi_set_capacity *scsi_cmd; 5786 5787 scsi_cmd = (struct scsi_set_capacity *)&csio->cdb_io.cdb_bytes; 5788 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5789 5790 scsi_cmd->opcode = SET_CAPACITY; 5791 5792 scsi_cmd->byte1 = byte1; 5793 scsi_ulto2b(proportion, scsi_cmd->cap_proportion); 5794 5795 cam_fill_csio(csio, 5796 retries, 5797 cbfcnp, 5798 /*flags*/CAM_DIR_NONE, 5799 tag_action, 5800 /*data_ptr*/NULL, 5801 /*dxfer_len*/0, 5802 sense_len, 5803 sizeof(*scsi_cmd), 5804 timeout); 5805 } 5806 5807 void 5808 scsi_format_medium(struct ccb_scsiio *csio, u_int32_t retries, 5809 void (*cbfcnp)(struct cam_periph *, union ccb *), 5810 u_int8_t tag_action, int byte1, int byte2, 5811 u_int8_t *data_ptr, u_int32_t dxfer_len, 5812 u_int32_t sense_len, u_int32_t timeout) 5813 { 5814 struct scsi_format_medium *scsi_cmd; 5815 5816 scsi_cmd = (struct scsi_format_medium*)&csio->cdb_io.cdb_bytes; 5817 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5818 5819 scsi_cmd->opcode = FORMAT_MEDIUM; 5820 5821 scsi_cmd->byte1 = byte1; 5822 scsi_cmd->byte2 = byte2; 5823 5824 scsi_ulto2b(dxfer_len, scsi_cmd->length); 5825 5826 cam_fill_csio(csio, 5827 retries, 5828 cbfcnp, 5829 /*flags*/(dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 5830 tag_action, 5831 /*data_ptr*/ data_ptr, 5832 /*dxfer_len*/ dxfer_len, 5833 sense_len, 5834 sizeof(*scsi_cmd), 5835 timeout); 5836 } 5837 5838 void 5839 scsi_allow_overwrite(struct ccb_scsiio *csio, u_int32_t retries, 5840 void (*cbfcnp)(struct cam_periph *, union ccb *), 5841 u_int8_t tag_action, int allow_overwrite, int partition, 5842 u_int64_t logical_id, u_int32_t sense_len, u_int32_t timeout) 5843 { 5844 struct scsi_allow_overwrite *scsi_cmd; 5845 5846 scsi_cmd = (struct scsi_allow_overwrite *)&csio->cdb_io.cdb_bytes; 5847 bzero(scsi_cmd, sizeof(*scsi_cmd)); 5848 5849 scsi_cmd->opcode = ALLOW_OVERWRITE; 5850 5851 scsi_cmd->allow_overwrite = allow_overwrite; 5852 scsi_cmd->partition = partition; 5853 scsi_u64to8b(logical_id, scsi_cmd->logical_id); 5854 5855 cam_fill_csio(csio, 5856 retries, 5857 cbfcnp, 5858 CAM_DIR_NONE, 5859 tag_action, 5860 /*data_ptr*/ NULL, 5861 /*dxfer_len*/ 0, 5862 sense_len, 5863 sizeof(*scsi_cmd), 5864 timeout); 5865 } 5866